129655640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104561}}^1$

素因数の和:104603

約数の個数: 32

約数和(自身を含む): 301138560

約数和(自身を除く): 171482920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 104561, 209122, 418244, 522805, 836488, 1045610, 2091220, 3241391, 4182440, 6482782, 12965564, 16206955, 25931128, 32413910, 64827820, 129655640]

約数ペア:

[(1, 129655640), (2, 64827820), (4, 32413910), (5, 25931128), (8, 16206955), (10, 12965564), (20, 6482782), (31, 4182440), (40, 3241391), (62, 2091220), (124, 1045610), (155, 836488), (248, 522805), (310, 418244), (620, 209122), (1240, 104561)]