90405

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{41}}^1$

素因数の和:66

約数の個数: 36

約数和(自身を含む): 186732

約数和(自身を除く): 96327

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 41, 45, 49, 63, 105, 123, 147, 205, 245, 287, 315, 369, 441, 615, 735, 861, 1435, 1845, 2009, 2205, 2583, 4305, 6027, 10045, 12915, 18081, 30135, 90405]

約数ペア:

[(1, 90405), (3, 30135), (5, 18081), (7, 12915), (9, 10045), (15, 6027), (21, 4305), (35, 2583), (41, 2205), (45, 2009), (49, 1845), (63, 1435), (105, 861), (123, 735), (147, 615), (205, 441), (245, 369), (287, 315)]