2004249620

素因数分解:

$2^2\times 5^1\times {\mathrm{8081}}^1\times {\mathrm{12401}}^1$

素因数の和:20491

約数の個数: 24

約数和(自身を含む): 4209784488

約数和(自身を除く): 2205534868

約数列:

[1, 2, 4, 5, 10, 20, 8081, 12401, 16162, 24802, 32324, 40405, 49604, 62005, 80810, 124010, 161620, 248020, 100212481, 200424962, 400849924, 501062405, 1002124810, 2004249620]

約数ペア:

[(1, 2004249620), (2, 1002124810), (4, 501062405), (5, 400849924), (10, 200424962), (20, 100212481), (8081, 248020), (12401, 161620), (16162, 124010), (24802, 80810), (32324, 62005), (40405, 49604)]