20748770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{947}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 42864768

約数和(自身を除く): 22115998

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 313, 626, 947, 1565, 1894, 2191, 3130, 4382, 4735, 6629, 9470, 10955, 13258, 21910, 33145, 66290, 296411, 592822, 1482055, 2074877, 2964110, 4149754, 10374385, 20748770]

約数ペア:

[(1, 20748770), (2, 10374385), (5, 4149754), (7, 2964110), (10, 2074877), (14, 1482055), (35, 592822), (70, 296411), (313, 66290), (626, 33145), (947, 21910), (1565, 13258), (1894, 10955), (2191, 9470), (3130, 6629), (4382, 4735)]