31806680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21491}}^1$

素因数の和:21539

約数の個数: 32

約数和(自身を含む): 73502640

約数和(自身を除く): 41695960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 21491, 42982, 85964, 107455, 171928, 214910, 429820, 795167, 859640, 1590334, 3180668, 3975835, 6361336, 7951670, 15903340, 31806680]

約数ペア:

[(1, 31806680), (2, 15903340), (4, 7951670), (5, 6361336), (8, 3975835), (10, 3180668), (20, 1590334), (37, 859640), (40, 795167), (74, 429820), (148, 214910), (185, 171928), (296, 107455), (370, 85964), (740, 42982), (1480, 21491)]