87439580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{27847}}^1$

素因数の和:28013

約数の個数: 24

約数和(自身を含む): 184799328

約数和(自身を除く): 97359748

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 27847, 55694, 111388, 139235, 278470, 556940, 4371979, 8743958, 17487916, 21859895, 43719790, 87439580]

約数ペア:

[(1, 87439580), (2, 43719790), (4, 21859895), (5, 17487916), (10, 8743958), (20, 4371979), (157, 556940), (314, 278470), (628, 139235), (785, 111388), (1570, 55694), (3140, 27847)]