256762428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{86627}}^1$

素因数の和:86666

約数の個数: 48

約数和(自身を含む): 679163520

約数和(自身を除く): 422401092

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 86627, 173254, 259881, 346508, 519762, 1039524, 1126151, 1645913, 2252302, 3291826, 3378453, 4504604, 4937739, 6583652, 6756906, 9875478, 13513812, 19750956, 21396869, 42793738, 64190607, 85587476, 128381214, 256762428]

約数ペア:

[(1, 256762428), (2, 128381214), (3, 85587476), (4, 64190607), (6, 42793738), (12, 21396869), (13, 19750956), (19, 13513812), (26, 9875478), (38, 6756906), (39, 6583652), (52, 4937739), (57, 4504604), (76, 3378453), (78, 3291826), (114, 2252302), (156, 1645913), (228, 1126151), (247, 1039524), (494, 519762), (741, 346508), (988, 259881), (1482, 173254), (2964, 86627)]