18445725

素因数分解:

$3^4\times 5^2\times {\mathrm{9109}}^1$

素因数の和:9131

約数の個数: 30

約数和(自身を含む): 34171610

約数和(自身を除く): 15725885

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9109, 27327, 45545, 81981, 136635, 227725, 245943, 409905, 683175, 737829, 1229715, 2049525, 3689145, 6148575, 18445725]

約数ペア:

[(1, 18445725), (3, 6148575), (5, 3689145), (9, 2049525), (15, 1229715), (25, 737829), (27, 683175), (45, 409905), (75, 245943), (81, 227725), (135, 136635), (225, 81981), (405, 45545), (675, 27327), (2025, 9109)]