251880720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:662

約数の個数: 320

約数和(自身を含む): 1013268480

約数和(自身を除く): 761387760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 48, 52, 56, 57, 60, 65, 70, 76, 78, 80, 84, 91, 95, 104, 105, 112, 114, 120, 130, 133, 140, 152, 156, 168, 182, 190, 195, 208, 210, 228, 240, 247, 260, 266, 273, 280, 285, 304, 312, 336, 364, 380, 390, 399, 420, 455, 456, 494, 520, 532, 546, 560, 570, 607, 624, 665, 728, 741, 760, 780, 798, 840, 910, 912, 988, 1040, 1064, 1092, 1140, 1214, 1235, 1330, 1365, 1456, 1482, 1520, 1560, 1596, 1680, 1729, 1820, 1821, 1976, 1995, 2128, 2184, 2280, 2428, 2470, 2660, 2730, 2964, 3035, 3120, 3192, 3458, 3640, 3642, 3705, 3952, 3990, 4249, 4368, 4560, 4856, 4940, 5187, 5320, 5460, 5928, 6070, 6384, 6916, 7280, 7284, 7410, 7891, 7980, 8498, 8645, 9105, 9712, 9880, 10374, 10640, 10920, 11533, 11856, 12140, 12747, 13832, 14568, 14820, 15782, 15960, 16996, 17290, 18210, 19760, 20748, 21245, 21840, 23066, 23673, 24280, 25494, 25935, 27664, 29136, 29640, 31564, 31920, 33992, 34580, 34599, 36420, 39455, 41496, 42490, 46132, 47346, 48560, 50988, 51870, 55237, 57665, 59280, 63128, 63735, 67984, 69160, 69198, 72840, 78910, 80731, 82992, 84980, 92264, 94692, 101976, 103740, 110474, 115330, 118365, 126256, 127470, 138320, 138396, 145680, 149929, 157820, 161462, 165711, 169960, 172995, 184528, 189384, 203952, 207480, 220948, 230660, 236730, 242193, 254940, 276185, 276792, 299858, 315640, 322924, 331422, 339920, 345990, 378768, 403655, 414960, 441896, 449787, 461320, 473460, 484386, 509880, 552370, 553584, 599716, 631280, 645848, 662844, 691980, 749645, 807310, 828555, 883792, 899574, 922640, 946920, 968772, 1019760, 1049503, 1104740, 1199432, 1210965, 1291696, 1325688, 1383960, 1499290, 1614620, 1657110, 1799148, 1893840, 1937544, 2099006, 2209480, 2248935, 2398864, 2421930, 2651376, 2767920, 2998580, 3148509, 3229240, 3314220, 3598296, 3875088, 4198012, 4418960, 4497870, 4843860, 5247515, 5997160, 6297018, 6458480, 6628440, 7196592, 8396024, 8995740, 9687720, 10495030, 11994320, 12594036, 13256880, 15742545, 16792048, 17991480, 19375440, 20990060, 25188072, 31485090, 35982960, 41980120, 50376144, 62970180, 83960240, 125940360, 251880720]

約数ペア:

[(1, 251880720), (2, 125940360), (3, 83960240), (4, 62970180), (5, 50376144), (6, 41980120), (7, 35982960), (8, 31485090), (10, 25188072), (12, 20990060), (13, 19375440), (14, 17991480), (15, 16792048), (16, 15742545), (19, 13256880), (20, 12594036), (21, 11994320), (24, 10495030), (26, 9687720), (28, 8995740), (30, 8396024), (35, 7196592), (38, 6628440), (39, 6458480), (40, 6297018), (42, 5997160), (48, 5247515), (52, 4843860), (56, 4497870), (57, 4418960), (60, 4198012), (65, 3875088), (70, 3598296), (76, 3314220), (78, 3229240), (80, 3148509), (84, 2998580), (91, 2767920), (95, 2651376), (104, 2421930), (105, 2398864), (112, 2248935), (114, 2209480), (120, 2099006), (130, 1937544), (133, 1893840), (140, 1799148), (152, 1657110), (156, 1614620), (168, 1499290), (182, 1383960), (190, 1325688), (195, 1291696), (208, 1210965), (210, 1199432), (228, 1104740), (240, 1049503), (247, 1019760), (260, 968772), (266, 946920), (273, 922640), (280, 899574), (285, 883792), (304, 828555), (312, 807310), (336, 749645), (364, 691980), (380, 662844), (390, 645848), (399, 631280), (420, 599716), (455, 553584), (456, 552370), (494, 509880), (520, 484386), (532, 473460), (546, 461320), (560, 449787), (570, 441896), (607, 414960), (624, 403655), (665, 378768), (728, 345990), (741, 339920), (760, 331422), (780, 322924), (798, 315640), (840, 299858), (910, 276792), (912, 276185), (988, 254940), (1040, 242193), (1064, 236730), (1092, 230660), (1140, 220948), (1214, 207480), (1235, 203952), (1330, 189384), (1365, 184528), (1456, 172995), (1482, 169960), (1520, 165711), (1560, 161462), (1596, 157820), (1680, 149929), (1729, 145680), (1820, 138396), (1821, 138320), (1976, 127470), (1995, 126256), (2128, 118365), (2184, 115330), (2280, 110474), (2428, 103740), (2470, 101976), (2660, 94692), (2730, 92264), (2964, 84980), (3035, 82992), (3120, 80731), (3192, 78910), (3458, 72840), (3640, 69198), (3642, 69160), (3705, 67984), (3952, 63735), (3990, 63128), (4249, 59280), (4368, 57665), (4560, 55237), (4856, 51870), (4940, 50988), (5187, 48560), (5320, 47346), (5460, 46132), (5928, 42490), (6070, 41496), (6384, 39455), (6916, 36420), (7280, 34599), (7284, 34580), (7410, 33992), (7891, 31920), (7980, 31564), (8498, 29640), (8645, 29136), (9105, 27664), (9712, 25935), (9880, 25494), (10374, 24280), (10640, 23673), (10920, 23066), (11533, 21840), (11856, 21245), (12140, 20748), (12747, 19760), (13832, 18210), (14568, 17290), (14820, 16996), (15782, 15960)]