17966980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28979}}^1$

素因数の和:29019

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 20982140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 28979, 57958, 115916, 144895, 289790, 579580, 898349, 1796698, 3593396, 4491745, 8983490, 17966980]

約数ペア:

[(1, 17966980), (2, 8983490), (4, 4491745), (5, 3593396), (10, 1796698), (20, 898349), (31, 579580), (62, 289790), (124, 144895), (155, 115916), (310, 57958), (620, 28979)]