81316860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1355281}}^1$

素因数の和:1355293

約数の個数: 24

約数和(自身を含む): 227687376

約数和(自身を除く): 146370516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1355281, 2710562, 4065843, 5421124, 6776405, 8131686, 13552810, 16263372, 20329215, 27105620, 40658430, 81316860]

約数ペア:

[(1, 81316860), (2, 40658430), (3, 27105620), (4, 20329215), (5, 16263372), (6, 13552810), (10, 8131686), (12, 6776405), (15, 5421124), (20, 4065843), (30, 2710562), (60, 1355281)]