20393540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59981}}^1$

素因数の和:60007

約数の個数: 24

約数和(自身を含む): 45346392

約数和(自身を除く): 24952852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 59981, 119962, 239924, 299905, 599810, 1019677, 1199620, 2039354, 4078708, 5098385, 10196770, 20393540]

約数ペア:

[(1, 20393540), (2, 10196770), (4, 5098385), (5, 4078708), (10, 2039354), (17, 1199620), (20, 1019677), (34, 599810), (68, 299905), (85, 239924), (170, 119962), (340, 59981)]