180056080

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{6449}}^1$

素因数の和:6811

約数の個数: 40

約数和(自身を含む): 419895000

約数和(自身を除く): 239838920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1396, 1745, 2792, 3490, 5584, 6449, 6980, 12898, 13960, 25796, 27920, 32245, 51592, 64490, 103184, 128980, 257960, 515920, 2250701, 4501402, 9002804, 11253505, 18005608, 22507010, 36011216, 45014020, 90028040, 180056080]

約数ペア:

[(1, 180056080), (2, 90028040), (4, 45014020), (5, 36011216), (8, 22507010), (10, 18005608), (16, 11253505), (20, 9002804), (40, 4501402), (80, 2250701), (349, 515920), (698, 257960), (1396, 128980), (1745, 103184), (2792, 64490), (3490, 51592), (5584, 32245), (6449, 27920), (6980, 25796), (12898, 13960)]