12686375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:276

約数の個数: 32

約数和(自身を含む): 17594304

約数和(自身を除く): 4907929

約数列:

[1, 5, 13, 25, 37, 65, 125, 185, 211, 325, 481, 925, 1055, 1625, 2405, 2743, 4625, 5275, 7807, 12025, 13715, 26375, 39035, 60125, 68575, 101491, 195175, 342875, 507455, 975875, 2537275, 12686375]

約数ペア:

[(1, 12686375), (5, 2537275), (13, 975875), (25, 507455), (37, 342875), (65, 195175), (125, 101491), (185, 68575), (211, 60125), (325, 39035), (481, 26375), (925, 13715), (1055, 12025), (1625, 7807), (2405, 5275), (2743, 4625)]