28957905

素因数分解:

$3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:707

約数の個数: 40

約数和(自身を含む): 52411392

約数和(自身を除く): 23453487

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 127, 135, 381, 405, 563, 635, 1143, 1689, 1905, 2815, 3429, 5067, 5715, 8445, 10287, 15201, 17145, 25335, 45603, 51435, 71501, 76005, 214503, 228015, 357505, 643509, 1072515, 1930527, 3217545, 5791581, 9652635, 28957905]

約数ペア:

[(1, 28957905), (3, 9652635), (5, 5791581), (9, 3217545), (15, 1930527), (27, 1072515), (45, 643509), (81, 357505), (127, 228015), (135, 214503), (381, 76005), (405, 71501), (563, 51435), (635, 45603), (1143, 25335), (1689, 17145), (1905, 15201), (2815, 10287), (3429, 8445), (5067, 5715)]