20400795

素因数分解:

$3^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{433}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 36456000

約数和(自身を除く): 16055205

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 349, 433, 1047, 1299, 1745, 2165, 3141, 3897, 5235, 6495, 9423, 11691, 15705, 19485, 47115, 58455, 151117, 453351, 755585, 1360053, 2266755, 4080159, 6800265, 20400795]

約数ペア:

[(1, 20400795), (3, 6800265), (5, 4080159), (9, 2266755), (15, 1360053), (27, 755585), (45, 453351), (135, 151117), (349, 58455), (433, 47115), (1047, 19485), (1299, 15705), (1745, 11691), (2165, 9423), (3141, 6495), (3897, 5235)]