129159640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104161}}^1$

素因数の和:104203

約数の個数: 32

約数和(自身を含む): 299986560

約数和(自身を除く): 170826920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 104161, 208322, 416644, 520805, 833288, 1041610, 2083220, 3228991, 4166440, 6457982, 12915964, 16144955, 25831928, 32289910, 64579820, 129159640]

約数ペア:

[(1, 129159640), (2, 64579820), (4, 32289910), (5, 25831928), (8, 16144955), (10, 12915964), (20, 6457982), (31, 4166440), (40, 3228991), (62, 2083220), (124, 1041610), (155, 833288), (248, 520805), (310, 416644), (620, 208322), (1240, 104161)]