71505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{227}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 142272

約数和(自身を除く): 70767

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 227, 315, 681, 1135, 1589, 2043, 3405, 4767, 7945, 10215, 14301, 23835, 71505]

約数ペア:

[(1, 71505), (3, 23835), (5, 14301), (7, 10215), (9, 7945), (15, 4767), (21, 3405), (35, 2043), (45, 1589), (63, 1135), (105, 681), (227, 315)]