20405720075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3693343}}^1$

素因数の和:3693383

約数の個数: 24

約数和(自身を含む): 28852403328

約数和(自身を除く): 8446683253

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 3693343, 18466715, 48013459, 62786831, 92333575, 240067295, 313934155, 816228803, 1200336475, 1569670775, 4081144015, 20405720075]

約数ペア:

[(1, 20405720075), (5, 4081144015), (13, 1569670775), (17, 1200336475), (25, 816228803), (65, 313934155), (85, 240067295), (221, 92333575), (325, 62786831), (425, 48013459), (1105, 18466715), (5525, 3693343)]