256392552

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{821771}}^1$

素因数の和:821793

約数の個数: 32

約数和(自身を含む): 690288480

約数和(自身を除く): 433895928

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 821771, 1643542, 2465313, 3287084, 4930626, 6574168, 9861252, 10683023, 19722504, 21366046, 32049069, 42732092, 64098138, 85464184, 128196276, 256392552]

約数ペア:

[(1, 256392552), (2, 128196276), (3, 85464184), (4, 64098138), (6, 42732092), (8, 32049069), (12, 21366046), (13, 19722504), (24, 10683023), (26, 9861252), (39, 6574168), (52, 4930626), (78, 3287084), (104, 2465313), (156, 1643542), (312, 821771)]