31402780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16187}}^1$

素因数の和:16293

約数の個数: 24

約数和(自身を含む): 66629808

約数和(自身を除く): 35227028

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 16187, 32374, 64748, 80935, 161870, 323740, 1570139, 3140278, 6280556, 7850695, 15701390, 31402780]

約数ペア:

[(1, 31402780), (2, 15701390), (4, 7850695), (5, 6280556), (10, 3140278), (20, 1570139), (97, 323740), (194, 161870), (388, 80935), (485, 64748), (970, 32374), (1940, 16187)]