20393090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70321}}^1$

素因数の和:70357

約数の個数: 16

約数和(自身を含む): 37973880

約数和(自身を除く): 17580790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 70321, 140642, 351605, 703210, 2039309, 4078618, 10196545, 20393090]

約数ペア:

[(1, 20393090), (2, 10196545), (5, 4078618), (10, 2039309), (29, 703210), (58, 351605), (145, 140642), (290, 70321)]