20306188

素因数分解:

$2^2\times 7^2\times {\mathrm{313}}^1\times {\mathrm{331}}^1$

素因数の和:662

約数の個数: 36

約数和(自身を含む): 41594952

約数和(自身を除く): 21288764

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 313, 331, 626, 662, 1252, 1324, 2191, 2317, 4382, 4634, 8764, 9268, 15337, 16219, 30674, 32438, 61348, 64876, 103603, 207206, 414412, 725221, 1450442, 2900884, 5076547, 10153094, 20306188]

約数ペア:

[(1, 20306188), (2, 10153094), (4, 5076547), (7, 2900884), (14, 1450442), (28, 725221), (49, 414412), (98, 207206), (196, 103603), (313, 64876), (331, 61348), (626, 32438), (662, 30674), (1252, 16219), (1324, 15337), (2191, 9268), (2317, 8764), (4382, 4634)]