255687720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15329}}^1$

素因数の和:15482

約数の個数: 64

約数和(自身を含む): 772632000

約数和(自身を除く): 516944280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2780, 3336, 4170, 5560, 8340, 15329, 16680, 30658, 45987, 61316, 76645, 91974, 122632, 153290, 183948, 229935, 306580, 367896, 459870, 613160, 919740, 1839480, 2130731, 4261462, 6392193, 8522924, 10653655, 12784386, 17045848, 21307310, 25568772, 31960965, 42614620, 51137544, 63921930, 85229240, 127843860, 255687720]

約数ペア:

[(1, 255687720), (2, 127843860), (3, 85229240), (4, 63921930), (5, 51137544), (6, 42614620), (8, 31960965), (10, 25568772), (12, 21307310), (15, 17045848), (20, 12784386), (24, 10653655), (30, 8522924), (40, 6392193), (60, 4261462), (120, 2130731), (139, 1839480), (278, 919740), (417, 613160), (556, 459870), (695, 367896), (834, 306580), (1112, 229935), (1390, 183948), (1668, 153290), (2085, 122632), (2780, 91974), (3336, 76645), (4170, 61316), (5560, 45987), (8340, 30658), (15329, 16680)]