89403560

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{5309}}^1$

素因数の和:5741

約数の個数: 32

約数和(自身を含む): 201673800

約数和(自身を除く): 112270240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 5309, 8420, 10618, 16840, 21236, 26545, 42472, 53090, 106180, 212360, 2235089, 4470178, 8940356, 11175445, 17880712, 22350890, 44701780, 89403560]

約数ペア:

[(1, 89403560), (2, 44701780), (4, 22350890), (5, 17880712), (8, 11175445), (10, 8940356), (20, 4470178), (40, 2235089), (421, 212360), (842, 106180), (1684, 53090), (2105, 42472), (3368, 26545), (4210, 21236), (5309, 16840), (8420, 10618)]