31280860

素因数分解:

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

素因数の和:3934

約数の個数: 48

約数和(自身を含む): 73043712

約数和(自身を除く): 41762852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3881, 4030, 7762, 8060, 15524, 19405, 38810, 50453, 77620, 100906, 120311, 201812, 240622, 252265, 481244, 504530, 601555, 1009060, 1203110, 1564043, 2406220, 3128086, 6256172, 7820215, 15640430, 31280860]

約数ペア:

[(1, 31280860), (2, 15640430), (4, 7820215), (5, 6256172), (10, 3128086), (13, 2406220), (20, 1564043), (26, 1203110), (31, 1009060), (52, 601555), (62, 504530), (65, 481244), (124, 252265), (130, 240622), (155, 201812), (260, 120311), (310, 100906), (403, 77620), (620, 50453), (806, 38810), (1612, 19405), (2015, 15524), (3881, 8060), (4030, 7762)]