89881640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{42397}}^1$

素因数の和:42461

約数の個数: 32

約数和(自身を含む): 206054280

約数和(自身を除く): 116172640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 42397, 84794, 169588, 211985, 339176, 423970, 847940, 1695880, 2247041, 4494082, 8988164, 11235205, 17976328, 22470410, 44940820, 89881640]

約数ペア:

[(1, 89881640), (2, 44940820), (4, 22470410), (5, 17976328), (8, 11235205), (10, 8988164), (20, 4494082), (40, 2247041), (53, 1695880), (106, 847940), (212, 423970), (265, 339176), (424, 211985), (530, 169588), (1060, 84794), (2120, 42397)]