19407440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18661}}^1$

素因数の和:18687

約数の個数: 40

約数和(自身を含む): 48595848

約数和(自身を除く): 29188408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18661, 37322, 74644, 93305, 149288, 186610, 242593, 298576, 373220, 485186, 746440, 970372, 1212965, 1492880, 1940744, 2425930, 3881488, 4851860, 9703720, 19407440]

約数ペア:

[(1, 19407440), (2, 9703720), (4, 4851860), (5, 3881488), (8, 2425930), (10, 1940744), (13, 1492880), (16, 1212965), (20, 970372), (26, 746440), (40, 485186), (52, 373220), (65, 298576), (80, 242593), (104, 186610), (130, 149288), (208, 93305), (260, 74644), (520, 37322), (1040, 18661)]