20259085

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 30668544

約数和(自身を除く): 10409459

約数列:

[1, 5, 7, 11, 35, 55, 77, 101, 385, 505, 521, 707, 1111, 2605, 3535, 3647, 5555, 5731, 7777, 18235, 28655, 38885, 40117, 52621, 200585, 263105, 368347, 578831, 1841735, 2894155, 4051817, 20259085]

約数ペア:

[(1, 20259085), (5, 4051817), (7, 2894155), (11, 1841735), (35, 578831), (55, 368347), (77, 263105), (101, 200585), (385, 52621), (505, 40117), (521, 38885), (707, 28655), (1111, 18235), (2605, 7777), (3535, 5731), (3647, 5555)]