19995992

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80629}}^1$

素因数の和:80666

約数の個数: 16

約数和(自身を含む): 38702400

約数和(自身を除く): 18706408

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80629, 161258, 322516, 645032, 2499499, 4998998, 9997996, 19995992]

約数ペア:

[(1, 19995992), (2, 9997996), (4, 4998998), (8, 2499499), (31, 645032), (62, 322516), (124, 161258), (248, 80629)]