81645125

素因数分解:

$5^3\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 106229760

約数和(自身を除く): 24584635

約数列:

[1, 5, 25, 37, 125, 127, 139, 185, 635, 695, 925, 3175, 3475, 4625, 4699, 5143, 15875, 17375, 17653, 23495, 25715, 88265, 117475, 128575, 441325, 587375, 642875, 653161, 2206625, 3265805, 16329025, 81645125]

約数ペア:

[(1, 81645125), (5, 16329025), (25, 3265805), (37, 2206625), (125, 653161), (127, 642875), (139, 587375), (185, 441325), (635, 128575), (695, 117475), (925, 88265), (3175, 25715), (3475, 23495), (4625, 17653), (4699, 17375), (5143, 15875)]