1260851840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{617}}^1$

素因数の和:770

約数の個数: 128

約数和(自身を含む): 3146757120

約数和(自身を除く): 1885905280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 103, 124, 128, 155, 160, 206, 248, 310, 320, 412, 496, 515, 617, 620, 640, 824, 992, 1030, 1234, 1240, 1648, 1984, 2060, 2468, 2480, 3085, 3193, 3296, 3968, 4120, 4936, 4960, 6170, 6386, 6592, 8240, 9872, 9920, 12340, 12772, 13184, 15965, 16480, 19127, 19744, 19840, 24680, 25544, 31930, 32960, 38254, 39488, 49360, 51088, 63551, 63860, 65920, 76508, 78976, 95635, 98720, 102176, 127102, 127720, 153016, 191270, 197440, 204352, 254204, 255440, 306032, 317755, 382540, 394880, 408704, 508408, 510880, 612064, 635510, 765080, 1016816, 1021760, 1224128, 1271020, 1530160, 1970081, 2033632, 2043520, 2448256, 2542040, 3060320, 3940162, 4067264, 5084080, 6120640, 7880324, 8134528, 9850405, 10168160, 12241280, 15760648, 19700810, 20336320, 31521296, 39401620, 40672640, 63042592, 78803240, 126085184, 157606480, 252170368, 315212960, 630425920, 1260851840]

約数ペア:

[(1, 1260851840), (2, 630425920), (4, 315212960), (5, 252170368), (8, 157606480), (10, 126085184), (16, 78803240), (20, 63042592), (31, 40672640), (32, 39401620), (40, 31521296), (62, 20336320), (64, 19700810), (80, 15760648), (103, 12241280), (124, 10168160), (128, 9850405), (155, 8134528), (160, 7880324), (206, 6120640), (248, 5084080), (310, 4067264), (320, 3940162), (412, 3060320), (496, 2542040), (515, 2448256), (617, 2043520), (620, 2033632), (640, 1970081), (824, 1530160), (992, 1271020), (1030, 1224128), (1234, 1021760), (1240, 1016816), (1648, 765080), (1984, 635510), (2060, 612064), (2468, 510880), (2480, 508408), (3085, 408704), (3193, 394880), (3296, 382540), (3968, 317755), (4120, 306032), (4936, 255440), (4960, 254204), (6170, 204352), (6386, 197440), (6592, 191270), (8240, 153016), (9872, 127720), (9920, 127102), (12340, 102176), (12772, 98720), (13184, 95635), (15965, 78976), (16480, 76508), (19127, 65920), (19744, 63860), (19840, 63551), (24680, 51088), (25544, 49360), (31930, 39488), (32960, 38254)]