28950575

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{4007}}^1$

素因数の和:4051

約数の個数: 18

約数和(自身を含む): 38144136

約数和(自身を除く): 9193561

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 4007, 7225, 20035, 68119, 100175, 340595, 1158023, 1702975, 5790115, 28950575]

約数ペア:

[(1, 28950575), (5, 5790115), (17, 1702975), (25, 1158023), (85, 340595), (289, 100175), (425, 68119), (1445, 20035), (4007, 7225)]