20303690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1409}}^1$

素因数の和:1558

約数の個数: 32

約数和(自身を含む): 40201920

約数和(自身を除く): 19898230

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 131, 262, 655, 1310, 1409, 1441, 2818, 2882, 7045, 7205, 14090, 14410, 15499, 30998, 77495, 154990, 184579, 369158, 922895, 1845790, 2030369, 4060738, 10151845, 20303690]

約数ペア:

[(1, 20303690), (2, 10151845), (5, 4060738), (10, 2030369), (11, 1845790), (22, 922895), (55, 369158), (110, 184579), (131, 154990), (262, 77495), (655, 30998), (1310, 15499), (1409, 14410), (1441, 14090), (2818, 7205), (2882, 7045)]