86789240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24379}}^1$

素因数の和:24479

約数の個数: 32

約数和(自身を含む): 197478000

約数和(自身を除く): 110688760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 24379, 48758, 97516, 121895, 195032, 243790, 487580, 975160, 2169731, 4339462, 8678924, 10848655, 17357848, 21697310, 43394620, 86789240]

約数ペア:

[(1, 86789240), (2, 43394620), (4, 21697310), (5, 17357848), (8, 10848655), (10, 8678924), (20, 4339462), (40, 2169731), (89, 975160), (178, 487580), (356, 243790), (445, 195032), (712, 121895), (890, 97516), (1780, 48758), (3560, 24379)]