19920848

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40163}}^1$

素因数の和:40202

約数の個数: 20

約数和(自身を含む): 39842688

約数和(自身を除く): 19921840

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40163, 80326, 160652, 321304, 642608, 1245053, 2490106, 4980212, 9960424, 19920848]

約数ペア:

[(1, 19920848), (2, 9960424), (4, 4980212), (8, 2490106), (16, 1245053), (31, 642608), (62, 321304), (124, 160652), (248, 80326), (496, 40163)]