255705780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{387433}}^1$

素因数の和:387456

約数の個数: 48

約数和(自身を含む): 781066944

約数和(自身を除く): 525361164

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 387433, 774866, 1162299, 1549732, 1937165, 2324598, 3874330, 4261763, 4649196, 5811495, 7748660, 8523526, 11622990, 12785289, 17047052, 21308815, 23245980, 25570578, 42617630, 51141156, 63926445, 85235260, 127852890, 255705780]

約数ペア:

[(1, 255705780), (2, 127852890), (3, 85235260), (4, 63926445), (5, 51141156), (6, 42617630), (10, 25570578), (11, 23245980), (12, 21308815), (15, 17047052), (20, 12785289), (22, 11622990), (30, 8523526), (33, 7748660), (44, 5811495), (55, 4649196), (60, 4261763), (66, 3874330), (110, 2324598), (132, 1937165), (165, 1549732), (220, 1162299), (330, 774866), (660, 387433)]