138839480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{266999}}^1$

素因数の和:267023

約数の個数: 32

約数和(自身を含む): 336420000

約数和(自身を除く): 197580520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 266999, 533998, 1067996, 1334995, 2135992, 2669990, 3470987, 5339980, 6941974, 10679960, 13883948, 17354935, 27767896, 34709870, 69419740, 138839480]

約数ペア:

[(1, 138839480), (2, 69419740), (4, 34709870), (5, 27767896), (8, 17354935), (10, 13883948), (13, 10679960), (20, 6941974), (26, 5339980), (40, 3470987), (52, 2669990), (65, 2135992), (104, 1334995), (130, 1067996), (260, 533998), (520, 266999)]