18447620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15121}}^1$

素因数の和:15191

約数の個数: 24

約数和(自身を含む): 39377688

約数和(自身を除く): 20930068

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15121, 30242, 60484, 75605, 151210, 302420, 922381, 1844762, 3689524, 4611905, 9223810, 18447620]

約数ペア:

[(1, 18447620), (2, 9223810), (4, 4611905), (5, 3689524), (10, 1844762), (20, 922381), (61, 302420), (122, 151210), (244, 75605), (305, 60484), (610, 30242), (1220, 15121)]