31421290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101359}}^1$

素因数の和:101397

約数の個数: 16

約数和(自身を含む): 58383360

約数和(自身を除く): 26962070

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 101359, 202718, 506795, 1013590, 3142129, 6284258, 15710645, 31421290]

約数ペア:

[(1, 31421290), (2, 15710645), (5, 6284258), (10, 3142129), (31, 1013590), (62, 506795), (155, 202718), (310, 101359)]