81286418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 133436160

約数和(自身を除く): 52149742

約数列:

[1, 2, 17, 34, 53, 79, 106, 158, 571, 901, 1142, 1343, 1802, 2686, 4187, 8374, 9707, 19414, 30263, 45109, 60526, 71179, 90218, 142358, 514471, 766853, 1028942, 1533706, 2390777, 4781554, 40643209, 81286418]

約数ペア:

[(1, 81286418), (2, 40643209), (17, 4781554), (34, 2390777), (53, 1533706), (79, 1028942), (106, 766853), (158, 514471), (571, 142358), (901, 90218), (1142, 71179), (1343, 60526), (1802, 45109), (2686, 30263), (4187, 19414), (8374, 9707)]