51857780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199453}}^1$

素因数の和:199475

約数の個数: 24

約数和(自身を含む): 117278952

約数和(自身を除く): 65421172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 199453, 398906, 797812, 997265, 1994530, 2592889, 3989060, 5185778, 10371556, 12964445, 25928890, 51857780]

約数ペア:

[(1, 51857780), (2, 25928890), (4, 12964445), (5, 10371556), (10, 5185778), (13, 3989060), (20, 2592889), (26, 1994530), (52, 997265), (65, 797812), (130, 398906), (260, 199453)]