81874325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13259}}^1$

素因数の和:13301

約数の個数: 24

約数和(自身を含む): 115096800

約数和(自身を除く): 33222475

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 6175, 13259, 66295, 172367, 251921, 331475, 861835, 1259605, 3274973, 4309175, 6298025, 16374865, 81874325]

約数ペア:

[(1, 81874325), (5, 16374865), (13, 6298025), (19, 4309175), (25, 3274973), (65, 1259605), (95, 861835), (247, 331475), (325, 251921), (475, 172367), (1235, 66295), (6175, 13259)]