278540270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{4561}}^1$

素因数の和:4796

約数の個数: 32

約数和(自身を含む): 520286976

約数和(自身を除く): 241746706

約数列:

[1, 2, 5, 10, 31, 62, 155, 197, 310, 394, 985, 1970, 4561, 6107, 9122, 12214, 22805, 30535, 45610, 61070, 141391, 282782, 706955, 898517, 1413910, 1797034, 4492585, 8985170, 27854027, 55708054, 139270135, 278540270]

約数ペア:

[(1, 278540270), (2, 139270135), (5, 55708054), (10, 27854027), (31, 8985170), (62, 4492585), (155, 1797034), (197, 1413910), (310, 898517), (394, 706955), (985, 282782), (1970, 141391), (4561, 61070), (6107, 45610), (9122, 30535), (12214, 22805)]