256444960

素因数分解:

$2^5\times 5^1\times {\mathrm{373}}^1\times {\mathrm{4297}}^1$

素因数の和:4685

約数の個数: 48

約数和(自身を含む): 607616856

約数和(自身を除く): 351171896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 373, 746, 1492, 1865, 2984, 3730, 4297, 5968, 7460, 8594, 11936, 14920, 17188, 21485, 29840, 34376, 42970, 59680, 68752, 85940, 137504, 171880, 343760, 687520, 1602781, 3205562, 6411124, 8013905, 12822248, 16027810, 25644496, 32055620, 51288992, 64111240, 128222480, 256444960]

約数ペア:

[(1, 256444960), (2, 128222480), (4, 64111240), (5, 51288992), (8, 32055620), (10, 25644496), (16, 16027810), (20, 12822248), (32, 8013905), (40, 6411124), (80, 3205562), (160, 1602781), (373, 687520), (746, 343760), (1492, 171880), (1865, 137504), (2984, 85940), (3730, 68752), (4297, 59680), (5968, 42970), (7460, 34376), (8594, 29840), (11936, 21485), (14920, 17188)]