18313490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{787}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 35743680

約数和(自身を除く): 17430190

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 179, 358, 787, 895, 1574, 1790, 2327, 3935, 4654, 7870, 10231, 11635, 20462, 23270, 51155, 102310, 140873, 281746, 704365, 1408730, 1831349, 3662698, 9156745, 18313490]

約数ペア:

[(1, 18313490), (2, 9156745), (5, 3662698), (10, 1831349), (13, 1408730), (26, 704365), (65, 281746), (130, 140873), (179, 102310), (358, 51155), (787, 23270), (895, 20462), (1574, 11635), (1790, 10231), (2327, 7870), (3935, 4654)]