15640430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3881}}^1$

素因数の和:3932

約数の個数: 32

約数和(自身を含む): 31304448

約数和(自身を除く): 15664018

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 3881, 4030, 7762, 19405, 38810, 50453, 100906, 120311, 240622, 252265, 504530, 601555, 1203110, 1564043, 3128086, 7820215, 15640430]

約数ペア:

[(1, 15640430), (2, 7820215), (5, 3128086), (10, 1564043), (13, 1203110), (26, 601555), (31, 504530), (62, 252265), (65, 240622), (130, 120311), (155, 100906), (310, 50453), (403, 38810), (806, 19405), (2015, 7762), (3881, 4030)]