66449620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{77267}}^1$

素因数の和:77319

約数の個数: 24

約数和(自身を含む): 142791264

約数和(自身を除く): 76341644

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 77267, 154534, 309068, 386335, 772670, 1545340, 3322481, 6644962, 13289924, 16612405, 33224810, 66449620]

約数ペア:

[(1, 66449620), (2, 33224810), (4, 16612405), (5, 13289924), (10, 6644962), (20, 3322481), (43, 1545340), (86, 772670), (172, 386335), (215, 309068), (430, 154534), (860, 77267)]