20580015

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31907}}^1$

素因数の和:31958

約数の個数: 16

約数和(自身を含む): 33694848

約数和(自身を除く): 13114833

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31907, 95721, 159535, 478605, 1372001, 4116003, 6860005, 20580015]

約数ペア:

[(1, 20580015), (3, 6860005), (5, 4116003), (15, 1372001), (43, 478605), (129, 159535), (215, 95721), (645, 31907)]