64735240

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{11813}}^1$

素因数の和:11961

約数の個数: 32

約数和(自身を含む): 146729880

約数和(自身を除く): 81994640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 11813, 23626, 47252, 59065, 94504, 118130, 236260, 472520, 1618381, 3236762, 6473524, 8091905, 12947048, 16183810, 32367620, 64735240]

約数ペア:

[(1, 64735240), (2, 32367620), (4, 16183810), (5, 12947048), (8, 8091905), (10, 6473524), (20, 3236762), (40, 1618381), (137, 472520), (274, 236260), (548, 118130), (685, 94504), (1096, 59065), (1370, 47252), (2740, 23626), (5480, 11813)]