20125909475

素因数分解:

$5^2\times 7^1\times {\mathrm{823}}^1\times {\mathrm{139739}}^1$

素因数の和:140579

約数の個数: 24

約数和(自身を含む): 28556148480

約数和(自身を除く): 8430239005

約数列:

[1, 5, 7, 25, 35, 175, 823, 4115, 5761, 20575, 28805, 139739, 144025, 698695, 978173, 3493475, 4890865, 24454325, 115005197, 575025985, 805036379, 2875129925, 4025181895, 20125909475]

約数ペア:

[(1, 20125909475), (5, 4025181895), (7, 2875129925), (25, 805036379), (35, 575025985), (175, 115005197), (823, 24454325), (4115, 4890865), (5761, 3493475), (20575, 978173), (28805, 698695), (139739, 144025)]