9920745

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 18057600

約数和(自身を除く): 8136855

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1709, 1935, 5127, 5805, 8545, 15381, 25635, 46143, 73487, 76905, 220461, 230715, 367435, 661383, 1102305, 1984149, 3306915, 9920745]

約数ペア:

[(1, 9920745), (3, 3306915), (5, 1984149), (9, 1102305), (15, 661383), (27, 367435), (43, 230715), (45, 220461), (129, 76905), (135, 73487), (215, 46143), (387, 25635), (645, 15381), (1161, 8545), (1709, 5805), (1935, 5127)]