20880147215

素因数分解:

$5^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1\times {\mathrm{87959}}^1$

素因数の和:88402

約数の個数: 16

約数和(自身を含む): 25288148160

約数和(自身を除く): 4408000945

約数列:

[1, 5, 197, 241, 985, 1205, 47477, 87959, 237385, 439795, 17327923, 21198119, 86639615, 105990595, 4176029443, 20880147215]

約数ペア:

[(1, 20880147215), (5, 4176029443), (197, 105990595), (241, 86639615), (985, 21198119), (1205, 17327923), (47477, 439795), (87959, 237385)]