1808774020

素因数分解:

$2^2\times 5^1\times {\mathrm{5981}}^1\times {\mathrm{15121}}^1$

素因数の和:21111

約数の個数: 24

約数和(自身を含む): 3799311768

約数和(自身を除く): 1990537748

約数列:

[1, 2, 4, 5, 10, 20, 5981, 11962, 15121, 23924, 29905, 30242, 59810, 60484, 75605, 119620, 151210, 302420, 90438701, 180877402, 361754804, 452193505, 904387010, 1808774020]

約数ペア:

[(1, 1808774020), (2, 904387010), (4, 452193505), (5, 361754804), (10, 180877402), (20, 90438701), (5981, 302420), (11962, 151210), (15121, 119620), (23924, 75605), (29905, 60484), (30242, 59810)]