64020340

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{3947}}^1$

素因数の和:4767

約数の個数: 24

約数和(自身を含む): 134642592

約数和(自身を除く): 70622252

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 3947, 4055, 7894, 8110, 15788, 16220, 19735, 39470, 78940, 3201017, 6402034, 12804068, 16005085, 32010170, 64020340]

約数ペア:

[(1, 64020340), (2, 32010170), (4, 16005085), (5, 12804068), (10, 6402034), (20, 3201017), (811, 78940), (1622, 39470), (3244, 19735), (3947, 16220), (4055, 15788), (7894, 8110)]