256030320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:672

約数の個数: 320

約数和(自身を含む): 1029934080

約数和(自身を除く): 773903760

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, 617, 624, 665, 728, 741, 760, 780, 798, 840, 910, 912, 988, 1040, 1064, 1092, 1140, 1234, 1235, 1330, 1365, 1456, 1482, 1520, 1560, 1596, 1680, 1729, 1820, 1851, 1976, 1995, 2128, 2184, 2280, 2468, 2470, 2660, 2730, 2964, 3085, 3120, 3192, 3458, 3640, 3702, 3705, 3952, 3990, 4319, 4368, 4560, 4936, 4940, 5187, 5320, 5460, 5928, 6170, 6384, 6916, 7280, 7404, 7410, 7980, 8021, 8638, 8645, 9255, 9872, 9880, 10374, 10640, 10920, 11723, 11856, 12340, 12957, 13832, 14808, 14820, 15960, 16042, 17276, 17290, 18510, 19760, 20748, 21595, 21840, 23446, 24063, 24680, 25914, 25935, 27664, 29616, 29640, 31920, 32084, 34552, 34580, 35169, 37020, 40105, 41496, 43190, 46892, 48126, 49360, 51828, 51870, 56147, 58615, 59280, 64168, 64785, 69104, 69160, 70338, 74040, 80210, 82061, 82992, 86380, 93784, 96252, 103656, 103740, 112294, 117230, 120315, 128336, 129570, 138320, 140676, 148080, 152399, 160420, 164122, 168441, 172760, 175845, 187568, 192504, 207312, 207480, 224588, 234460, 240630, 246183, 259140, 280735, 281352, 304798, 320840, 328244, 336882, 345520, 351690, 385008, 410305, 414960, 449176, 457197, 468920, 481260, 492366, 518280, 561470, 562704, 609596, 641680, 656488, 673764, 703380, 761995, 820610, 842205, 898352, 914394, 937840, 962520, 984732, 1036560, 1066793, 1122940, 1219192, 1230915, 1312976, 1347528, 1406760, 1523990, 1641220, 1684410, 1828788, 1925040, 1969464, 2133586, 2245880, 2285985, 2438384, 2461830, 2695056, 2813520, 3047980, 3200379, 3282440, 3368820, 3657576, 3938928, 4267172, 4491760, 4571970, 4923660, 5333965, 6095960, 6400758, 6564880, 6737640, 7315152, 8534344, 9143940, 9847320, 10667930, 12191920, 12801516, 13475280, 16001895, 17068688, 18287880, 19694640, 21335860, 25603032, 32003790, 36575760, 42671720, 51206064, 64007580, 85343440, 128015160, 256030320]

約数ペア:

[(1, 256030320), (2, 128015160), (3, 85343440), (4, 64007580), (5, 51206064), (6, 42671720), (7, 36575760), (8, 32003790), (10, 25603032), (12, 21335860), (13, 19694640), (14, 18287880), (15, 17068688), (16, 16001895), (19, 13475280), (20, 12801516), (21, 12191920), (24, 10667930), (26, 9847320), (28, 9143940), (30, 8534344), (35, 7315152), (38, 6737640), (39, 6564880), (40, 6400758), (42, 6095960), (48, 5333965), (52, 4923660), (56, 4571970), (57, 4491760), (60, 4267172), (65, 3938928), (70, 3657576), (76, 3368820), (78, 3282440), (80, 3200379), (84, 3047980), (91, 2813520), (95, 2695056), (104, 2461830), (105, 2438384), (112, 2285985), (114, 2245880), (120, 2133586), (130, 1969464), (133, 1925040), (140, 1828788), (152, 1684410), (156, 1641220), (168, 1523990), (182, 1406760), (190, 1347528), (195, 1312976), (208, 1230915), (210, 1219192), (228, 1122940), (240, 1066793), (247, 1036560), (260, 984732), (266, 962520), (273, 937840), (280, 914394), (285, 898352), (304, 842205), (312, 820610), (336, 761995), (364, 703380), (380, 673764), (390, 656488), (399, 641680), (420, 609596), (455, 562704), (456, 561470), (494, 518280), (520, 492366), (532, 481260), (546, 468920), (560, 457197), (570, 449176), (617, 414960), (624, 410305), (665, 385008), (728, 351690), (741, 345520), (760, 336882), (780, 328244), (798, 320840), (840, 304798), (910, 281352), (912, 280735), (988, 259140), (1040, 246183), (1064, 240630), (1092, 234460), (1140, 224588), (1234, 207480), (1235, 207312), (1330, 192504), (1365, 187568), (1456, 175845), (1482, 172760), (1520, 168441), (1560, 164122), (1596, 160420), (1680, 152399), (1729, 148080), (1820, 140676), (1851, 138320), (1976, 129570), (1995, 128336), (2128, 120315), (2184, 117230), (2280, 112294), (2468, 103740), (2470, 103656), (2660, 96252), (2730, 93784), (2964, 86380), (3085, 82992), (3120, 82061), (3192, 80210), (3458, 74040), (3640, 70338), (3702, 69160), (3705, 69104), (3952, 64785), (3990, 64168), (4319, 59280), (4368, 58615), (4560, 56147), (4936, 51870), (4940, 51828), (5187, 49360), (5320, 48126), (5460, 46892), (5928, 43190), (6170, 41496), (6384, 40105), (6916, 37020), (7280, 35169), (7404, 34580), (7410, 34552), (7980, 32084), (8021, 31920), (8638, 29640), (8645, 29616), (9255, 27664), (9872, 25935), (9880, 25914), (10374, 24680), (10640, 24063), (10920, 23446), (11723, 21840), (11856, 21595), (12340, 20748), (12957, 19760), (13832, 18510), (14808, 17290), (14820, 17276), (15960, 16042)]