51387180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{65881}}^1$

素因数の和:65906

約数の個数: 48

約数和(自身を含む): 154954464

約数和(自身を除く): 103567284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 65881, 131762, 197643, 263524, 329405, 395286, 658810, 790572, 856453, 988215, 1317620, 1712906, 1976430, 2569359, 3425812, 3952860, 4282265, 5138718, 8564530, 10277436, 12846795, 17129060, 25693590, 51387180]

約数ペア:

[(1, 51387180), (2, 25693590), (3, 17129060), (4, 12846795), (5, 10277436), (6, 8564530), (10, 5138718), (12, 4282265), (13, 3952860), (15, 3425812), (20, 2569359), (26, 1976430), (30, 1712906), (39, 1317620), (52, 988215), (60, 856453), (65, 790572), (78, 658810), (130, 395286), (156, 329405), (195, 263524), (260, 197643), (390, 131762), (780, 65881)]