20178952

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 38827800

約数和(自身を除く): 18648848

約数列:

[1, 2, 4, 8, 73, 109, 146, 218, 292, 317, 436, 584, 634, 872, 1268, 2536, 7957, 15914, 23141, 31828, 34553, 46282, 63656, 69106, 92564, 138212, 185128, 276424, 2522369, 5044738, 10089476, 20178952]

約数ペア:

[(1, 20178952), (2, 10089476), (4, 5044738), (8, 2522369), (73, 276424), (109, 185128), (146, 138212), (218, 92564), (292, 69106), (317, 63656), (436, 46282), (584, 34553), (634, 31828), (872, 23141), (1268, 15914), (2536, 7957)]