6721240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1487}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 15266880

約数和(自身を除く): 8545640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 1487, 2260, 2974, 4520, 5948, 7435, 11896, 14870, 29740, 59480, 168031, 336062, 672124, 840155, 1344248, 1680310, 3360620, 6721240]

約数ペア:

[(1, 6721240), (2, 3360620), (4, 1680310), (5, 1344248), (8, 840155), (10, 672124), (20, 336062), (40, 168031), (113, 59480), (226, 29740), (452, 14870), (565, 11896), (904, 7435), (1130, 5948), (1487, 4520), (2260, 2974)]