639169920

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:862

約数の個数: 256

約数和(自身を含む): 2314828800

約数和(自身を除く): 1675658880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 64, 72, 80, 90, 94, 96, 108, 120, 128, 135, 141, 144, 160, 180, 188, 192, 216, 235, 240, 270, 282, 288, 320, 360, 376, 384, 423, 432, 470, 480, 540, 564, 576, 640, 705, 720, 752, 787, 846, 864, 940, 960, 1080, 1128, 1152, 1269, 1410, 1440, 1504, 1574, 1692, 1728, 1880, 1920, 2115, 2160, 2256, 2361, 2538, 2820, 2880, 3008, 3148, 3384, 3456, 3760, 3935, 4230, 4320, 4512, 4722, 5076, 5640, 5760, 6016, 6296, 6345, 6768, 7083, 7520, 7870, 8460, 8640, 9024, 9444, 10152, 11280, 11805, 12592, 12690, 13536, 14166, 15040, 15740, 16920, 17280, 18048, 18888, 20304, 21249, 22560, 23610, 25184, 25380, 27072, 28332, 30080, 31480, 33840, 35415, 36989, 37776, 40608, 42498, 45120, 47220, 50368, 50760, 54144, 56664, 62960, 67680, 70830, 73978, 75552, 81216, 84996, 90240, 94440, 100736, 101520, 106245, 110967, 113328, 125920, 135360, 141660, 147956, 151104, 162432, 169992, 184945, 188880, 203040, 212490, 221934, 226656, 251840, 270720, 283320, 295912, 302208, 332901, 339984, 369890, 377760, 406080, 424980, 443868, 453312, 503680, 554835, 566640, 591824, 665802, 679968, 739780, 755520, 812160, 849960, 887736, 906624, 998703, 1109670, 1133280, 1183648, 1331604, 1359936, 1479560, 1511040, 1664505, 1699920, 1775472, 1997406, 2219340, 2266560, 2367296, 2663208, 2719872, 2959120, 3329010, 3399840, 3550944, 3994812, 4438680, 4533120, 4734592, 4993515, 5326416, 5918240, 6658020, 6799680, 7101888, 7989624, 8877360, 9987030, 10652832, 11836480, 13316040, 13599360, 14203776, 15979248, 17754720, 19974060, 21305664, 23672960, 26632080, 31958496, 35509440, 39948120, 42611328, 53264160, 63916992, 71018880, 79896240, 106528320, 127833984, 159792480, 213056640, 319584960, 639169920]

約数ペア:

[(1, 639169920), (2, 319584960), (3, 213056640), (4, 159792480), (5, 127833984), (6, 106528320), (8, 79896240), (9, 71018880), (10, 63916992), (12, 53264160), (15, 42611328), (16, 39948120), (18, 35509440), (20, 31958496), (24, 26632080), (27, 23672960), (30, 21305664), (32, 19974060), (36, 17754720), (40, 15979248), (45, 14203776), (47, 13599360), (48, 13316040), (54, 11836480), (60, 10652832), (64, 9987030), (72, 8877360), (80, 7989624), (90, 7101888), (94, 6799680), (96, 6658020), (108, 5918240), (120, 5326416), (128, 4993515), (135, 4734592), (141, 4533120), (144, 4438680), (160, 3994812), (180, 3550944), (188, 3399840), (192, 3329010), (216, 2959120), (235, 2719872), (240, 2663208), (270, 2367296), (282, 2266560), (288, 2219340), (320, 1997406), (360, 1775472), (376, 1699920), (384, 1664505), (423, 1511040), (432, 1479560), (470, 1359936), (480, 1331604), (540, 1183648), (564, 1133280), (576, 1109670), (640, 998703), (705, 906624), (720, 887736), (752, 849960), (787, 812160), (846, 755520), (864, 739780), (940, 679968), (960, 665802), (1080, 591824), (1128, 566640), (1152, 554835), (1269, 503680), (1410, 453312), (1440, 443868), (1504, 424980), (1574, 406080), (1692, 377760), (1728, 369890), (1880, 339984), (1920, 332901), (2115, 302208), (2160, 295912), (2256, 283320), (2361, 270720), (2538, 251840), (2820, 226656), (2880, 221934), (3008, 212490), (3148, 203040), (3384, 188880), (3456, 184945), (3760, 169992), (3935, 162432), (4230, 151104), (4320, 147956), (4512, 141660), (4722, 135360), (5076, 125920), (5640, 113328), (5760, 110967), (6016, 106245), (6296, 101520), (6345, 100736), (6768, 94440), (7083, 90240), (7520, 84996), (7870, 81216), (8460, 75552), (8640, 73978), (9024, 70830), (9444, 67680), (10152, 62960), (11280, 56664), (11805, 54144), (12592, 50760), (12690, 50368), (13536, 47220), (14166, 45120), (15040, 42498), (15740, 40608), (16920, 37776), (17280, 36989), (18048, 35415), (18888, 33840), (20304, 31480), (21249, 30080), (22560, 28332), (23610, 27072), (25184, 25380)]