81994250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{25229}}^1$

素因数の和:25259

約数の個数: 32

約数和(自身を含む): 165306960

約数和(自身を除く): 83312710

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 25229, 50458, 126145, 252290, 327977, 630725, 655954, 1261450, 1639885, 3153625, 3279770, 6307250, 8199425, 16398850, 40997125, 81994250]

約数ペア:

[(1, 81994250), (2, 40997125), (5, 16398850), (10, 8199425), (13, 6307250), (25, 3279770), (26, 3153625), (50, 1639885), (65, 1261450), (125, 655954), (130, 630725), (250, 327977), (325, 252290), (650, 126145), (1625, 50458), (3250, 25229)]