87720484

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{2131}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 157955616

約数和(自身を除く): 70235132

約数列:

[1, 2, 4, 41, 82, 164, 251, 502, 1004, 2131, 4262, 8524, 10291, 20582, 41164, 87371, 174742, 349484, 534881, 1069762, 2139524, 21930121, 43860242, 87720484]

約数ペア:

[(1, 87720484), (2, 43860242), (4, 21930121), (41, 2139524), (82, 1069762), (164, 534881), (251, 349484), (502, 174742), (1004, 87371), (2131, 41164), (4262, 20582), (8524, 10291)]