20120782675

素因数分解:

$5^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{515587}}^1$

素因数の和:515827

約数の個数: 24

約数和(自身を含む): 28641944576

約数和(自身を除く): 8521161901

約数列:

[1, 5, 7, 25, 35, 175, 223, 1115, 1561, 5575, 7805, 39025, 515587, 2577935, 3609109, 12889675, 18045545, 90227725, 114975901, 574879505, 804831307, 2874397525, 4024156535, 20120782675]

約数ペア:

[(1, 20120782675), (5, 4024156535), (7, 2874397525), (25, 804831307), (35, 574879505), (175, 114975901), (223, 90227725), (1115, 18045545), (1561, 12889675), (5575, 3609109), (7805, 2577935), (39025, 515587)]