400289906

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{12641}}^1$

素因数の和:12937

約数の個数: 16

約数和(自身を含む): 611670528

約数和(自身を除く): 211380622

約数列:

[1, 2, 71, 142, 223, 446, 12641, 15833, 25282, 31666, 897511, 1795022, 2818943, 5637886, 200144953, 400289906]

約数ペア:

[(1, 400289906), (2, 200144953), (71, 5637886), (142, 2818943), (223, 1795022), (446, 897511), (12641, 31666), (15833, 25282)]