129620900

素因数分解:

$2^2\times 5^2\times {\mathrm{1296209}}^1$

素因数の和:1296223

約数の個数: 18

約数和(自身を含む): 281277570

約数和(自身を除く): 151656670

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1296209, 2592418, 5184836, 6481045, 12962090, 25924180, 32405225, 64810450, 129620900]

約数ペア:

[(1, 129620900), (2, 64810450), (4, 32405225), (5, 25924180), (10, 12962090), (20, 6481045), (25, 5184836), (50, 2592418), (100, 1296209)]