31328680

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10729}}^1$

素因数の和:10813

約数の個数: 32

約数和(自身を含む): 71461800

約数和(自身を除く): 40133120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 10729, 21458, 42916, 53645, 85832, 107290, 214580, 429160, 783217, 1566434, 3132868, 3916085, 6265736, 7832170, 15664340, 31328680]

約数ペア:

[(1, 31328680), (2, 15664340), (4, 7832170), (5, 6265736), (8, 3916085), (10, 3132868), (20, 1566434), (40, 783217), (73, 429160), (146, 214580), (292, 107290), (365, 85832), (584, 53645), (730, 42916), (1460, 21458), (2920, 10729)]