71254430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17681}}^1$

素因数の和:17732

約数の個数: 32

約数和(自身を含む): 142587648

約数和(自身を除く): 71333218

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17681, 35362, 88405, 176810, 229853, 459706, 548111, 1096222, 1149265, 2298530, 2740555, 5481110, 7125443, 14250886, 35627215, 71254430]

約数ペア:

[(1, 71254430), (2, 35627215), (5, 14250886), (10, 7125443), (13, 5481110), (26, 2740555), (31, 2298530), (62, 1149265), (65, 1096222), (130, 548111), (155, 459706), (310, 229853), (403, 176810), (806, 88405), (2015, 35362), (4030, 17681)]