20627375

素因数分解:

$5^3\times {\mathrm{17}}^2\times {\mathrm{571}}^1$

素因数の和:620

約数の個数: 24

約数和(自身を含む): 27394224

約数和(自身を除く): 6766849

約数列:

[1, 5, 17, 25, 85, 125, 289, 425, 571, 1445, 2125, 2855, 7225, 9707, 14275, 36125, 48535, 71375, 165019, 242675, 825095, 1213375, 4125475, 20627375]

約数ペア:

[(1, 20627375), (5, 4125475), (17, 1213375), (25, 825095), (85, 242675), (125, 165019), (289, 71375), (425, 48535), (571, 36125), (1445, 14275), (2125, 9707), (2855, 7225)]