85290520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{304609}}^1$

素因数の和:304627

約数の個数: 32

約数和(自身を含む): 219319200

約数和(自身を除く): 134028680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 304609, 609218, 1218436, 1523045, 2132263, 2436872, 3046090, 4264526, 6092180, 8529052, 10661315, 12184360, 17058104, 21322630, 42645260, 85290520]

約数ペア:

[(1, 85290520), (2, 42645260), (4, 21322630), (5, 17058104), (7, 12184360), (8, 10661315), (10, 8529052), (14, 6092180), (20, 4264526), (28, 3046090), (35, 2436872), (40, 2132263), (56, 1523045), (70, 1218436), (140, 609218), (280, 304609)]