80940140

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{11273}}^1$

素因数の和:11641

約数の個数: 24

約数和(自身を含む): 170462880

約数和(自身を除く): 89522740

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 11273, 22546, 45092, 56365, 112730, 225460, 4047007, 8094014, 16188028, 20235035, 40470070, 80940140]

約数ペア:

[(1, 80940140), (2, 40470070), (4, 20235035), (5, 16188028), (10, 8094014), (20, 4047007), (359, 225460), (718, 112730), (1436, 56365), (1795, 45092), (3590, 22546), (7180, 11273)]