12905725

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2543}}^1$

素因数の和:2589

約数の個数: 24

約数和(自身を含む): 18927360

約数和(自身を除く): 6021635

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 2543, 5075, 12715, 17801, 63575, 73747, 89005, 368735, 445025, 516229, 1843675, 2581145, 12905725]

約数ペア:

[(1, 12905725), (5, 2581145), (7, 1843675), (25, 516229), (29, 445025), (35, 368735), (145, 89005), (175, 73747), (203, 63575), (725, 17801), (1015, 12715), (2543, 5075)]