20690520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172421}}^1$

素因数の和:172435

約数の個数: 32

約数和(自身を含む): 62071920

約数和(自身を除く): 41381400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172421, 344842, 517263, 689684, 862105, 1034526, 1379368, 1724210, 2069052, 2586315, 3448420, 4138104, 5172630, 6896840, 10345260, 20690520]

約数ペア:

[(1, 20690520), (2, 10345260), (3, 6896840), (4, 5172630), (5, 4138104), (6, 3448420), (8, 2586315), (10, 2069052), (12, 1724210), (15, 1379368), (20, 1034526), (24, 862105), (30, 689684), (40, 517263), (60, 344842), (120, 172421)]