25991920

素因数分解:

$2^4\times 5^1\times {\mathrm{569}}^1\times {\mathrm{571}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 60643440

約数和(自身を除く): 34651520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 569, 571, 1138, 1142, 2276, 2284, 2845, 2855, 4552, 4568, 5690, 5710, 9104, 9136, 11380, 11420, 22760, 22840, 45520, 45680, 324899, 649798, 1299596, 1624495, 2599192, 3248990, 5198384, 6497980, 12995960, 25991920]

約数ペア:

[(1, 25991920), (2, 12995960), (4, 6497980), (5, 5198384), (8, 3248990), (10, 2599192), (16, 1624495), (20, 1299596), (40, 649798), (80, 324899), (569, 45680), (571, 45520), (1138, 22840), (1142, 22760), (2276, 11420), (2284, 11380), (2845, 9136), (2855, 9104), (4552, 5710), (4568, 5690)]