19850815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{571}}^1$

素因数の和:1002

約数の個数: 16

約数和(自身を含む): 25328160

約数和(自身を除く): 5477345

約数列:

[1, 5, 17, 85, 409, 571, 2045, 2855, 6953, 9707, 34765, 48535, 233539, 1167695, 3970163, 19850815]

約数ペア:

[(1, 19850815), (5, 3970163), (17, 1167695), (85, 233539), (409, 48535), (571, 34765), (2045, 9707), (2855, 6953)]