631280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:633

約数の個数: 40

約数和(自身を含む): 1583232

約数和(自身を除く): 951952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 607, 1040, 1214, 2428, 3035, 4856, 6070, 7891, 9712, 12140, 15782, 24280, 31564, 39455, 48560, 63128, 78910, 126256, 157820, 315640, 631280]

約数ペア:

[(1, 631280), (2, 315640), (4, 157820), (5, 126256), (8, 78910), (10, 63128), (13, 48560), (16, 39455), (20, 31564), (26, 24280), (40, 15782), (52, 12140), (65, 9712), (80, 7891), (104, 6070), (130, 4856), (208, 3035), (260, 2428), (520, 1214), (607, 1040)]