20480728

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 40669200

約数和(自身を除く): 20188472

約数列:

[1, 2, 4, 8, 29, 43, 58, 86, 116, 172, 232, 344, 1247, 2053, 2494, 4106, 4988, 8212, 9976, 16424, 59537, 88279, 119074, 176558, 238148, 353116, 476296, 706232, 2560091, 5120182, 10240364, 20480728]

約数ペア:

[(1, 20480728), (2, 10240364), (4, 5120182), (8, 2560091), (29, 706232), (43, 476296), (58, 353116), (86, 238148), (116, 176558), (172, 119074), (232, 88279), (344, 59537), (1247, 16424), (2053, 9976), (2494, 8212), (4106, 4988)]