81810

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{101}}^1$

素因数の和:120

約数の個数: 40

約数和(自身を含む): 222156

約数和(自身を除く): 140346

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 101, 135, 162, 202, 270, 303, 405, 505, 606, 810, 909, 1010, 1515, 1818, 2727, 3030, 4545, 5454, 8181, 9090, 13635, 16362, 27270, 40905, 81810]

約数ペア:

[(1, 81810), (2, 40905), (3, 27270), (5, 16362), (6, 13635), (9, 9090), (10, 8181), (15, 5454), (18, 4545), (27, 3030), (30, 2727), (45, 1818), (54, 1515), (81, 1010), (90, 909), (101, 810), (135, 606), (162, 505), (202, 405), (270, 303)]