256444890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{3407}}^1$

素因数の和:3623

約数の個数: 64

約数和(自身を含む): 666441216

約数和(自身を除く): 409996326

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 193, 195, 386, 390, 579, 965, 1158, 1930, 2509, 2895, 3407, 5018, 5790, 6814, 7527, 10221, 12545, 15054, 17035, 20442, 25090, 34070, 37635, 44291, 51105, 75270, 88582, 102210, 132873, 221455, 265746, 442910, 657551, 664365, 1315102, 1328730, 1972653, 3287755, 3945306, 6575510, 8548163, 9863265, 17096326, 19726530, 25644489, 42740815, 51288978, 85481630, 128222445, 256444890]

約数ペア:

[(1, 256444890), (2, 128222445), (3, 85481630), (5, 51288978), (6, 42740815), (10, 25644489), (13, 19726530), (15, 17096326), (26, 9863265), (30, 8548163), (39, 6575510), (65, 3945306), (78, 3287755), (130, 1972653), (193, 1328730), (195, 1315102), (386, 664365), (390, 657551), (579, 442910), (965, 265746), (1158, 221455), (1930, 132873), (2509, 102210), (2895, 88582), (3407, 75270), (5018, 51105), (5790, 44291), (6814, 37635), (7527, 34070), (10221, 25090), (12545, 20442), (15054, 17035)]