30981775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 42323184

約数和(自身を除く): 11341409

約数列:

[1, 5, 11, 25, 55, 113, 275, 565, 997, 1243, 2825, 4985, 6215, 10967, 24925, 31075, 54835, 112661, 274175, 563305, 1239271, 2816525, 6196355, 30981775]

約数ペア:

[(1, 30981775), (5, 6196355), (11, 2816525), (25, 1239271), (55, 563305), (113, 274175), (275, 112661), (565, 54835), (997, 31075), (1243, 24925), (2825, 10967), (4985, 6215)]