201225520

素因数分解:

$2^4\times 5^1\times {\mathrm{2515319}}^1$

素因数の和:2515332

約数の個数: 20

約数和(自身を含む): 467849520

約数和(自身を除く): 266624000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515319, 5030638, 10061276, 12576595, 20122552, 25153190, 40245104, 50306380, 100612760, 201225520]

約数ペア:

[(1, 201225520), (2, 100612760), (4, 50306380), (5, 40245104), (8, 25153190), (10, 20122552), (16, 12576595), (20, 10061276), (40, 5030638), (80, 2515319)]