90409750

素因数分解:

$2^1\times 5^3\times {\mathrm{421}}^1\times {\mathrm{859}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 169846560

約数和(自身を除く): 79436810

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 421, 842, 859, 1718, 2105, 4210, 4295, 8590, 10525, 21050, 21475, 42950, 52625, 105250, 107375, 214750, 361639, 723278, 1808195, 3616390, 9040975, 18081950, 45204875, 90409750]

約数ペア:

[(1, 90409750), (2, 45204875), (5, 18081950), (10, 9040975), (25, 3616390), (50, 1808195), (125, 723278), (250, 361639), (421, 214750), (842, 107375), (859, 105250), (1718, 52625), (2105, 42950), (4210, 21475), (4295, 21050), (8590, 10525)]