20116040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71843}}^1$

素因数の和:71861

約数の個数: 32

約数和(自身を含む): 51727680

約数和(自身を除く): 31611640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71843, 143686, 287372, 359215, 502901, 574744, 718430, 1005802, 1436860, 2011604, 2514505, 2873720, 4023208, 5029010, 10058020, 20116040]

約数ペア:

[(1, 20116040), (2, 10058020), (4, 5029010), (5, 4023208), (7, 2873720), (8, 2514505), (10, 2011604), (14, 1436860), (20, 1005802), (28, 718430), (35, 574744), (40, 502901), (56, 359215), (70, 287372), (140, 143686), (280, 71843)]