39999440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38461}}^1$

素因数の和:38487

約数の個数: 40

約数和(自身を含む): 100155048

約数和(自身を除く): 60155608

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 38461, 76922, 153844, 192305, 307688, 384610, 499993, 615376, 769220, 999986, 1538440, 1999972, 2499965, 3076880, 3999944, 4999930, 7999888, 9999860, 19999720, 39999440]

約数ペア:

[(1, 39999440), (2, 19999720), (4, 9999860), (5, 7999888), (8, 4999930), (10, 3999944), (13, 3076880), (16, 2499965), (20, 1999972), (26, 1538440), (40, 999986), (52, 769220), (65, 615376), (80, 499993), (104, 384610), (130, 307688), (208, 192305), (260, 153844), (520, 76922), (1040, 38461)]