66407980

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{11987}}^1$

素因数の和:12273

約数の個数: 24

約数和(自身を含む): 139971888

約数和(自身を除く): 73563908

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 11987, 23974, 47948, 59935, 119870, 239740, 3320399, 6640798, 13281596, 16601995, 33203990, 66407980]

約数ペア:

[(1, 66407980), (2, 33203990), (4, 16601995), (5, 13281596), (10, 6640798), (20, 3320399), (277, 239740), (554, 119870), (1108, 59935), (1385, 47948), (2770, 23974), (5540, 11987)]