86786800

素因数分解:

$2^4\times 5^2\times {\mathrm{216967}}^1$

素因数の和:216985

約数の個数: 30

約数和(自身を含む): 208506248

約数和(自身を除く): 121719448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 216967, 433934, 867868, 1084835, 1735736, 2169670, 3471472, 4339340, 5424175, 8678680, 10848350, 17357360, 21696700, 43393400, 86786800]

約数ペア:

[(1, 86786800), (2, 43393400), (4, 21696700), (5, 17357360), (8, 10848350), (10, 8678680), (16, 5424175), (20, 4339340), (25, 3471472), (40, 2169670), (50, 1735736), (80, 1084835), (100, 867868), (200, 433934), (400, 216967)]