28142728

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{359}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 54432000

約数和(自身を除く): 26289272

約数列:

[1, 2, 4, 8, 41, 82, 164, 239, 328, 359, 478, 718, 956, 1436, 1912, 2872, 9799, 14719, 19598, 29438, 39196, 58876, 78392, 85801, 117752, 171602, 343204, 686408, 3517841, 7035682, 14071364, 28142728]

約数ペア:

[(1, 28142728), (2, 14071364), (4, 7035682), (8, 3517841), (41, 686408), (82, 343204), (164, 171602), (239, 117752), (328, 85801), (359, 78392), (478, 58876), (718, 39196), (956, 29438), (1436, 19598), (1912, 14719), (2872, 9799)]