25520720

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2141}}^1$

素因数の和:2303

約数の個数: 40

約数和(自身を含む): 59761800

約数和(自身を除く): 34241080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2141, 2384, 2980, 4282, 5960, 8564, 10705, 11920, 17128, 21410, 34256, 42820, 85640, 171280, 319009, 638018, 1276036, 1595045, 2552072, 3190090, 5104144, 6380180, 12760360, 25520720]

約数ペア:

[(1, 25520720), (2, 12760360), (4, 6380180), (5, 5104144), (8, 3190090), (10, 2552072), (16, 1595045), (20, 1276036), (40, 638018), (80, 319009), (149, 171280), (298, 85640), (596, 42820), (745, 34256), (1192, 21410), (1490, 17128), (2141, 11920), (2384, 10705), (2980, 8564), (4282, 5960)]