28878004225

素因数分解:

$5^2\times 7^2\times {\mathrm{1361}}^1\times {\mathrm{17321}}^1$

素因数の和:18706

約数の個数: 36

約数和(自身を含む): 41688060588

約数和(自身を除く): 12810056363

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 1361, 6805, 9527, 17321, 34025, 47635, 66689, 86605, 121247, 238175, 333445, 433025, 606235, 848729, 1667225, 3031175, 4243645, 21218225, 23573881, 117869405, 165017167, 589347025, 825085835, 1155120169, 4125429175, 5775600845, 28878004225]

約数ペア:

[(1, 28878004225), (5, 5775600845), (7, 4125429175), (25, 1155120169), (35, 825085835), (49, 589347025), (175, 165017167), (245, 117869405), (1225, 23573881), (1361, 21218225), (6805, 4243645), (9527, 3031175), (17321, 1667225), (34025, 848729), (47635, 606235), (66689, 433025), (86605, 333445), (121247, 238175)]