398676080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1009}}^1$

素因数の和:1482

約数の個数: 80

約数和(自身を含む): 1014444000

約数和(自身を除く): 615767920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 449, 880, 898, 1009, 1796, 2018, 2245, 3592, 4036, 4490, 4939, 5045, 7184, 8072, 8980, 9878, 10090, 11099, 16144, 17960, 19756, 20180, 22198, 24695, 35920, 39512, 40360, 44396, 49390, 55495, 79024, 80720, 88792, 98780, 110990, 177584, 197560, 221980, 395120, 443960, 453041, 887920, 906082, 1812164, 2265205, 3624328, 4530410, 4983451, 7248656, 9060820, 9966902, 18121640, 19933804, 24917255, 36243280, 39867608, 49834510, 79735216, 99669020, 199338040, 398676080]

約数ペア:

[(1, 398676080), (2, 199338040), (4, 99669020), (5, 79735216), (8, 49834510), (10, 39867608), (11, 36243280), (16, 24917255), (20, 19933804), (22, 18121640), (40, 9966902), (44, 9060820), (55, 7248656), (80, 4983451), (88, 4530410), (110, 3624328), (176, 2265205), (220, 1812164), (440, 906082), (449, 887920), (880, 453041), (898, 443960), (1009, 395120), (1796, 221980), (2018, 197560), (2245, 177584), (3592, 110990), (4036, 98780), (4490, 88792), (4939, 80720), (5045, 79024), (7184, 55495), (8072, 49390), (8980, 44396), (9878, 40360), (10090, 39512), (11099, 35920), (16144, 24695), (17960, 22198), (19756, 20180)]