19464220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{907}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 43475040

約数和(自身を除く): 24010820

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 907, 1073, 1814, 2146, 3628, 4292, 4535, 5365, 9070, 10730, 18140, 21460, 26303, 33559, 52606, 67118, 105212, 131515, 134236, 167795, 263030, 335590, 526060, 671180, 973211, 1946422, 3892844, 4866055, 9732110, 19464220]

約数ペア:

[(1, 19464220), (2, 9732110), (4, 4866055), (5, 3892844), (10, 1946422), (20, 973211), (29, 671180), (37, 526060), (58, 335590), (74, 263030), (116, 167795), (145, 134236), (148, 131515), (185, 105212), (290, 67118), (370, 52606), (580, 33559), (740, 26303), (907, 21460), (1073, 18140), (1814, 10730), (2146, 9070), (3628, 5365), (4292, 4535)]