257724220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{3769}}^1$

素因数の和:4054

約数の個数: 48

約数和(自身を含む): 585224640

約数和(自身を除く): 327500420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263, 526, 1052, 1315, 2630, 3419, 3769, 5260, 6838, 7538, 13676, 15076, 17095, 18845, 34190, 37690, 48997, 68380, 75380, 97994, 195988, 244985, 489970, 979940, 991247, 1982494, 3964988, 4956235, 9912470, 12886211, 19824940, 25772422, 51544844, 64431055, 128862110, 257724220]

約数ペア:

[(1, 257724220), (2, 128862110), (4, 64431055), (5, 51544844), (10, 25772422), (13, 19824940), (20, 12886211), (26, 9912470), (52, 4956235), (65, 3964988), (130, 1982494), (260, 991247), (263, 979940), (526, 489970), (1052, 244985), (1315, 195988), (2630, 97994), (3419, 75380), (3769, 68380), (5260, 48997), (6838, 37690), (7538, 34190), (13676, 18845), (15076, 17095)]