8657208920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{70891}}^1$

素因数の和:71016

約数の個数: 64

約数和(自身を含む): 20212727040

約数和(自身を除く): 11555518120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 284, 344, 355, 430, 568, 710, 860, 1420, 1720, 2840, 3053, 6106, 12212, 15265, 24424, 30530, 61060, 70891, 122120, 141782, 283564, 354455, 567128, 708910, 1417820, 2835640, 3048313, 5033261, 6096626, 10066522, 12193252, 15241565, 20133044, 24386504, 25166305, 30483130, 40266088, 50332610, 60966260, 100665220, 121932520, 201330440, 216430223, 432860446, 865720892, 1082151115, 1731441784, 2164302230, 4328604460, 8657208920]

約数ペア:

[(1, 8657208920), (2, 4328604460), (4, 2164302230), (5, 1731441784), (8, 1082151115), (10, 865720892), (20, 432860446), (40, 216430223), (43, 201330440), (71, 121932520), (86, 100665220), (142, 60966260), (172, 50332610), (215, 40266088), (284, 30483130), (344, 25166305), (355, 24386504), (430, 20133044), (568, 15241565), (710, 12193252), (860, 10066522), (1420, 6096626), (1720, 5033261), (2840, 3048313), (3053, 2835640), (6106, 1417820), (12212, 708910), (15265, 567128), (24424, 354455), (30530, 283564), (61060, 141782), (70891, 122120)]