9971080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 25920000

約数和(自身を除く): 15948920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 239, 280, 298, 478, 596, 745, 956, 1043, 1192, 1195, 1490, 1673, 1912, 2086, 2390, 2980, 3346, 4172, 4780, 5215, 5960, 6692, 8344, 8365, 9560, 10430, 13384, 16730, 20860, 33460, 35611, 41720, 66920, 71222, 142444, 178055, 249277, 284888, 356110, 498554, 712220, 997108, 1246385, 1424440, 1994216, 2492770, 4985540, 9971080]

約数ペア:

[(1, 9971080), (2, 4985540), (4, 2492770), (5, 1994216), (7, 1424440), (8, 1246385), (10, 997108), (14, 712220), (20, 498554), (28, 356110), (35, 284888), (40, 249277), (56, 178055), (70, 142444), (140, 71222), (149, 66920), (239, 41720), (280, 35611), (298, 33460), (478, 20860), (596, 16730), (745, 13384), (956, 10430), (1043, 9560), (1192, 8365), (1195, 8344), (1490, 6692), (1673, 5960), (1912, 5215), (2086, 4780), (2390, 4172), (2980, 3346)]