20730456

素因数分解:

$2^3\times 3^2\times {\mathrm{499}}^1\times {\mathrm{577}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 56355000

約数和(自身を除く): 35624544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 499, 577, 998, 1154, 1497, 1731, 1996, 2308, 2994, 3462, 3992, 4491, 4616, 5193, 5988, 6924, 8982, 10386, 11976, 13848, 17964, 20772, 35928, 41544, 287923, 575846, 863769, 1151692, 1727538, 2303384, 2591307, 3455076, 5182614, 6910152, 10365228, 20730456]

約数ペア:

[(1, 20730456), (2, 10365228), (3, 6910152), (4, 5182614), (6, 3455076), (8, 2591307), (9, 2303384), (12, 1727538), (18, 1151692), (24, 863769), (36, 575846), (72, 287923), (499, 41544), (577, 35928), (998, 20772), (1154, 17964), (1497, 13848), (1731, 11976), (1996, 10386), (2308, 8982), (2994, 6924), (3462, 5988), (3992, 5193), (4491, 4616)]