19856040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{491}}^1$

素因数の和:842

約数の個数: 64

約数和(自身を含む): 59866560

約数和(自身を除く): 40010520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 337, 491, 674, 982, 1011, 1348, 1473, 1685, 1964, 2022, 2455, 2696, 2946, 3370, 3928, 4044, 4910, 5055, 5892, 6740, 7365, 8088, 9820, 10110, 11784, 13480, 14730, 19640, 20220, 29460, 40440, 58920, 165467, 330934, 496401, 661868, 827335, 992802, 1323736, 1654670, 1985604, 2482005, 3309340, 3971208, 4964010, 6618680, 9928020, 19856040]

約数ペア:

[(1, 19856040), (2, 9928020), (3, 6618680), (4, 4964010), (5, 3971208), (6, 3309340), (8, 2482005), (10, 1985604), (12, 1654670), (15, 1323736), (20, 992802), (24, 827335), (30, 661868), (40, 496401), (60, 330934), (120, 165467), (337, 58920), (491, 40440), (674, 29460), (982, 20220), (1011, 19640), (1348, 14730), (1473, 13480), (1685, 11784), (1964, 10110), (2022, 9820), (2455, 8088), (2696, 7365), (2946, 6740), (3370, 5892), (3928, 5055), (4044, 4910)]