20620720

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{673}}^1$

素因数の和:1069

約数の個数: 40

約数和(自身を含む): 48139776

約数和(自身を除く): 27519056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 673, 766, 1346, 1532, 1915, 2692, 3064, 3365, 3830, 5384, 6128, 6730, 7660, 10768, 13460, 15320, 26920, 30640, 53840, 257759, 515518, 1031036, 1288795, 2062072, 2577590, 4124144, 5155180, 10310360, 20620720]

約数ペア:

[(1, 20620720), (2, 10310360), (4, 5155180), (5, 4124144), (8, 2577590), (10, 2062072), (16, 1288795), (20, 1031036), (40, 515518), (80, 257759), (383, 53840), (673, 30640), (766, 26920), (1346, 15320), (1532, 13460), (1915, 10768), (2692, 7660), (3064, 6730), (3365, 6128), (3830, 5384)]