20151394280

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1619887}}^1$

素因数の和:1620209

約数の個数: 32

約数和(自身を含む): 45486455040

約数和(自身を除く): 25335060760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 1619887, 3239774, 6479548, 8099435, 12959096, 16198870, 32397740, 64795480, 503784857, 1007569714, 2015139428, 2518924285, 4030278856, 5037848570, 10075697140, 20151394280]

約数ペア:

[(1, 20151394280), (2, 10075697140), (4, 5037848570), (5, 4030278856), (8, 2518924285), (10, 2015139428), (20, 1007569714), (40, 503784857), (311, 64795480), (622, 32397740), (1244, 16198870), (1555, 12959096), (2488, 8099435), (3110, 6479548), (6220, 3239774), (12440, 1619887)]