257712960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 224

約数和(自身を含む): 877824000

約数和(自身を除く): 620111040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 71, 76, 80, 95, 96, 114, 120, 142, 152, 160, 190, 192, 199, 213, 228, 240, 284, 285, 304, 320, 355, 380, 398, 426, 456, 480, 568, 570, 597, 608, 710, 760, 796, 852, 912, 960, 995, 1065, 1136, 1140, 1194, 1216, 1349, 1420, 1520, 1592, 1704, 1824, 1990, 2130, 2272, 2280, 2388, 2698, 2840, 2985, 3040, 3184, 3408, 3648, 3781, 3980, 4047, 4260, 4544, 4560, 4776, 5396, 5680, 5970, 6080, 6368, 6745, 6816, 7562, 7960, 8094, 8520, 9120, 9552, 10792, 11343, 11360, 11940, 12736, 13490, 13632, 14129, 15124, 15920, 16188, 17040, 18240, 18905, 19104, 20235, 21584, 22686, 22720, 23880, 26980, 28258, 30248, 31840, 32376, 34080, 37810, 38208, 40470, 42387, 43168, 45372, 47760, 53960, 56516, 56715, 60496, 63680, 64752, 68160, 70645, 75620, 80940, 84774, 86336, 90744, 95520, 107920, 113032, 113430, 120992, 129504, 141290, 151240, 161880, 169548, 181488, 191040, 211935, 215840, 226064, 226860, 241984, 259008, 268451, 282580, 302480, 323760, 339096, 362976, 423870, 431680, 452128, 453720, 536902, 565160, 604960, 647520, 678192, 725952, 805353, 847740, 904256, 907440, 1073804, 1130320, 1209920, 1295040, 1342255, 1356384, 1610706, 1695480, 1814880, 2147608, 2260640, 2684510, 2712768, 3221412, 3390960, 3629760, 4026765, 4295216, 4521280, 5369020, 6442824, 6781920, 8053530, 8590432, 10738040, 12885648, 13563840, 16107060, 17180864, 21476080, 25771296, 32214120, 42952160, 51542592, 64428240, 85904320, 128856480, 257712960]

約数ペア:

[(1, 257712960), (2, 128856480), (3, 85904320), (4, 64428240), (5, 51542592), (6, 42952160), (8, 32214120), (10, 25771296), (12, 21476080), (15, 17180864), (16, 16107060), (19, 13563840), (20, 12885648), (24, 10738040), (30, 8590432), (32, 8053530), (38, 6781920), (40, 6442824), (48, 5369020), (57, 4521280), (60, 4295216), (64, 4026765), (71, 3629760), (76, 3390960), (80, 3221412), (95, 2712768), (96, 2684510), (114, 2260640), (120, 2147608), (142, 1814880), (152, 1695480), (160, 1610706), (190, 1356384), (192, 1342255), (199, 1295040), (213, 1209920), (228, 1130320), (240, 1073804), (284, 907440), (285, 904256), (304, 847740), (320, 805353), (355, 725952), (380, 678192), (398, 647520), (426, 604960), (456, 565160), (480, 536902), (568, 453720), (570, 452128), (597, 431680), (608, 423870), (710, 362976), (760, 339096), (796, 323760), (852, 302480), (912, 282580), (960, 268451), (995, 259008), (1065, 241984), (1136, 226860), (1140, 226064), (1194, 215840), (1216, 211935), (1349, 191040), (1420, 181488), (1520, 169548), (1592, 161880), (1704, 151240), (1824, 141290), (1990, 129504), (2130, 120992), (2272, 113430), (2280, 113032), (2388, 107920), (2698, 95520), (2840, 90744), (2985, 86336), (3040, 84774), (3184, 80940), (3408, 75620), (3648, 70645), (3781, 68160), (3980, 64752), (4047, 63680), (4260, 60496), (4544, 56715), (4560, 56516), (4776, 53960), (5396, 47760), (5680, 45372), (5970, 43168), (6080, 42387), (6368, 40470), (6745, 38208), (6816, 37810), (7562, 34080), (7960, 32376), (8094, 31840), (8520, 30248), (9120, 28258), (9552, 26980), (10792, 23880), (11343, 22720), (11360, 22686), (11940, 21584), (12736, 20235), (13490, 19104), (13632, 18905), (14129, 18240), (15124, 17040), (15920, 16188)]