257906890

素因数分解:

$2^1\times 5^1\times {\mathrm{3217}}^1\times {\mathrm{8017}}^1$

素因数の和:11241

約数の個数: 16

約数和(自身を含む): 464434632

約数和(自身を除く): 206527742

約数列:

[1, 2, 5, 10, 3217, 6434, 8017, 16034, 16085, 32170, 40085, 80170, 25790689, 51581378, 128953445, 257906890]

約数ペア:

[(1, 257906890), (2, 128953445), (5, 51581378), (10, 25790689), (3217, 80170), (6434, 40085), (8017, 32170), (16034, 16085)]