20889350

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13477}}^1$

素因数の和:13520

約数の個数: 24

約数和(自身を含む): 40110528

約数和(自身を除く): 19221178

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13477, 26954, 67385, 134770, 336925, 417787, 673850, 835574, 2088935, 4177870, 10444675, 20889350]

約数ペア:

[(1, 20889350), (2, 10444675), (5, 4177870), (10, 2088935), (25, 835574), (31, 673850), (50, 417787), (62, 336925), (155, 134770), (310, 67385), (775, 26954), (1550, 13477)]