256311276

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1643021}}^1$

素因数の和:1643041

約数の個数: 24

約数和(自身を含む): 644064624

約数和(自身を除く): 387753348

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1643021, 3286042, 4929063, 6572084, 9858126, 19716252, 21359273, 42718546, 64077819, 85437092, 128155638, 256311276]

約数ペア:

[(1, 256311276), (2, 128155638), (3, 85437092), (4, 64077819), (6, 42718546), (12, 21359273), (13, 19716252), (26, 9858126), (39, 6572084), (52, 4929063), (78, 3286042), (156, 1643021)]