2678680

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 6078240

約数和(自身を除く): 3399560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 401, 668, 802, 835, 1336, 1604, 1670, 2005, 3208, 3340, 4010, 6680, 8020, 16040, 66967, 133934, 267868, 334835, 535736, 669670, 1339340, 2678680]

約数ペア:

[(1, 2678680), (2, 1339340), (4, 669670), (5, 535736), (8, 334835), (10, 267868), (20, 133934), (40, 66967), (167, 16040), (334, 8020), (401, 6680), (668, 4010), (802, 3340), (835, 3208), (1336, 2005), (1604, 1670)]