40200100

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{2221}}^1$

素因数の和:2416

約数の個数: 36

約数和(自身を含む): 87755668

約数和(自身を除く): 47555568

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 362, 724, 905, 1810, 2221, 3620, 4442, 4525, 8884, 9050, 11105, 18100, 22210, 44420, 55525, 111050, 222100, 402001, 804002, 1608004, 2010005, 4020010, 8040020, 10050025, 20100050, 40200100]

約数ペア:

[(1, 40200100), (2, 20100050), (4, 10050025), (5, 8040020), (10, 4020010), (20, 2010005), (25, 1608004), (50, 804002), (100, 402001), (181, 222100), (362, 111050), (724, 55525), (905, 44420), (1810, 22210), (2221, 18100), (3620, 11105), (4442, 9050), (4525, 8884)]