40905

素因数分解:

$3^4\times 5^1\times {\mathrm{101}}^1$

素因数の和:118

約数の個数: 20

約数和(自身を含む): 74052

約数和(自身を除く): 33147

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 505, 909, 1515, 2727, 4545, 8181, 13635, 40905]

約数ペア:

[(1, 40905), (3, 13635), (5, 8181), (9, 4545), (15, 2727), (27, 1515), (45, 909), (81, 505), (101, 405), (135, 303)]