80191880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14423}}^1$

素因数の和:14573

約数の個数: 32

約数和(自身を含む): 181742400

約数和(自身を除く): 101550520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 14423, 28846, 57692, 72115, 115384, 144230, 288460, 576920, 2004797, 4009594, 8019188, 10023985, 16038376, 20047970, 40095940, 80191880]

約数ペア:

[(1, 80191880), (2, 40095940), (4, 20047970), (5, 16038376), (8, 10023985), (10, 8019188), (20, 4009594), (40, 2004797), (139, 576920), (278, 288460), (556, 144230), (695, 115384), (1112, 72115), (1390, 57692), (2780, 28846), (5560, 14423)]