81627650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4051}}^1$

素因数の和:4107

約数の個数: 48

約数和(自身を含む): 168822528

約数和(自身を除く): 87194878

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 4051, 8102, 10075, 20150, 20255, 40510, 52663, 101275, 105326, 125581, 202550, 251162, 263315, 526630, 627905, 1255810, 1316575, 1632553, 2633150, 3139525, 3265106, 6279050, 8162765, 16325530, 40813825, 81627650]

約数ペア:

[(1, 81627650), (2, 40813825), (5, 16325530), (10, 8162765), (13, 6279050), (25, 3265106), (26, 3139525), (31, 2633150), (50, 1632553), (62, 1316575), (65, 1255810), (130, 627905), (155, 526630), (310, 263315), (325, 251162), (403, 202550), (650, 125581), (775, 105326), (806, 101275), (1550, 52663), (2015, 40510), (4030, 20255), (4051, 20150), (8102, 10075)]