256261010

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1\times {\mathrm{1303}}^1$

素因数の和:1658

約数の個数: 32

約数和(自身を含む): 469815552

約数和(自身を除く): 213554542

約数列:

[1, 2, 5, 10, 71, 142, 277, 355, 554, 710, 1303, 1385, 2606, 2770, 6515, 13030, 19667, 39334, 92513, 98335, 185026, 196670, 360931, 462565, 721862, 925130, 1804655, 3609310, 25626101, 51252202, 128130505, 256261010]

約数ペア:

[(1, 256261010), (2, 128130505), (5, 51252202), (10, 25626101), (71, 3609310), (142, 1804655), (277, 925130), (355, 721862), (554, 462565), (710, 360931), (1303, 196670), (1385, 185026), (2606, 98335), (2770, 92513), (6515, 39334), (13030, 19667)]