138832720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{133493}}^1$

素因数の和:133519

約数の個数: 40

約数和(自身を含む): 347618376

約数和(自身を除く): 208785656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 133493, 266986, 533972, 667465, 1067944, 1334930, 1735409, 2135888, 2669860, 3470818, 5339720, 6941636, 8677045, 10679440, 13883272, 17354090, 27766544, 34708180, 69416360, 138832720]

約数ペア:

[(1, 138832720), (2, 69416360), (4, 34708180), (5, 27766544), (8, 17354090), (10, 13883272), (13, 10679440), (16, 8677045), (20, 6941636), (26, 5339720), (40, 3470818), (52, 2669860), (65, 2135888), (80, 1735409), (104, 1334930), (130, 1067944), (208, 667465), (260, 533972), (520, 266986), (1040, 133493)]