31179980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{119923}}^1$

素因数の和:119945

約数の個数: 24

約数和(自身を含む): 70515312

約数和(自身を除く): 39335332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 119923, 239846, 479692, 599615, 1199230, 1558999, 2398460, 3117998, 6235996, 7794995, 15589990, 31179980]

約数ペア:

[(1, 31179980), (2, 15589990), (4, 7794995), (5, 6235996), (10, 3117998), (13, 2398460), (20, 1558999), (26, 1199230), (52, 599615), (65, 479692), (130, 239846), (260, 119923)]