256778316

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{33487}}^1$

素因数の和:33571

約数の個数: 48

約数和(自身を含む): 675118080

約数和(自身を除く): 418339764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 3834, 7668, 33487, 66974, 100461, 133948, 200922, 301383, 401844, 602766, 904149, 1205532, 1808298, 2377577, 3616596, 4755154, 7132731, 9510308, 14265462, 21398193, 28530924, 42796386, 64194579, 85592772, 128389158, 256778316]

約数ペア:

[(1, 256778316), (2, 128389158), (3, 85592772), (4, 64194579), (6, 42796386), (9, 28530924), (12, 21398193), (18, 14265462), (27, 9510308), (36, 7132731), (54, 4755154), (71, 3616596), (108, 2377577), (142, 1808298), (213, 1205532), (284, 904149), (426, 602766), (639, 401844), (852, 301383), (1278, 200922), (1917, 133948), (2556, 100461), (3834, 66974), (7668, 33487)]