66977375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{28201}}^1$

素因数の和:28235

約数の個数: 16

約数和(自身を含む): 87990240

約数和(自身を除く): 21012865

約数列:

[1, 5, 19, 25, 95, 125, 475, 2375, 28201, 141005, 535819, 705025, 2679095, 3525125, 13395475, 66977375]

約数ペア:

[(1, 66977375), (5, 13395475), (19, 3525125), (25, 2679095), (95, 705025), (125, 535819), (475, 141005), (2375, 28201)]