211788590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{52553}}^1$

素因数の和:52604

約数の個数: 32

約数和(自身を含む): 423795456

約数和(自身を除く): 212006866

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 52553, 105106, 262765, 525530, 683189, 1366378, 1629143, 3258286, 3415945, 6831890, 8145715, 16291430, 21178859, 42357718, 105894295, 211788590]

約数ペア:

[(1, 211788590), (2, 105894295), (5, 42357718), (10, 21178859), (13, 16291430), (26, 8145715), (31, 6831890), (62, 3415945), (65, 3258286), (130, 1629143), (155, 1366378), (310, 683189), (403, 525530), (806, 262765), (2015, 105106), (4030, 52553)]