26811590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6653}}^1$

素因数の和:6704

約数の個数: 32

約数和(自身を含む): 53657856

約数和(自身を除く): 26846266

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 6653, 13306, 33265, 66530, 86489, 172978, 206243, 412486, 432445, 864890, 1031215, 2062430, 2681159, 5362318, 13405795, 26811590]

約数ペア:

[(1, 26811590), (2, 13405795), (5, 5362318), (10, 2681159), (13, 2062430), (26, 1031215), (31, 864890), (62, 432445), (65, 412486), (130, 206243), (155, 172978), (310, 86489), (403, 66530), (806, 33265), (2015, 13306), (4030, 6653)]