20512125215

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{1423}}^1\times {\mathrm{26449}}^1$

素因数の和:27986

約数の個数: 16

約数和(自身を含む): 24858768000

約数和(自身を除く): 4346642785

約数列:

[1, 5, 109, 545, 1423, 7115, 26449, 132245, 155107, 775535, 2882941, 14414705, 37636927, 188184635, 4102425043, 20512125215]

約数ペア:

[(1, 20512125215), (5, 4102425043), (109, 188184635), (545, 37636927), (1423, 14414705), (7115, 2882941), (26449, 775535), (132245, 155107)]