256310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 24

約数和(自身を含む): 493776

約数和(自身を除く): 237466

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 361, 710, 722, 1349, 1805, 2698, 3610, 6745, 13490, 25631, 51262, 128155, 256310]

約数ペア:

[(1, 256310), (2, 128155), (5, 51262), (10, 25631), (19, 13490), (38, 6745), (71, 3610), (95, 2698), (142, 1805), (190, 1349), (355, 722), (361, 710)]