66402940

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{20369}}^1$

素因数の和:20541

約数の個数: 24

約数和(自身を含む): 140308560

約数和(自身を除く): 73905620

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 20369, 40738, 81476, 101845, 203690, 407380, 3320147, 6640294, 13280588, 16600735, 33201470, 66402940]

約数ペア:

[(1, 66402940), (2, 33201470), (4, 16600735), (5, 13280588), (10, 6640294), (20, 3320147), (163, 407380), (326, 203690), (652, 101845), (815, 81476), (1630, 40738), (3260, 20369)]