28716995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 39201408

約数和(自身を除く): 10484413

約数列:

[1, 5, 17, 23, 37, 85, 115, 185, 391, 397, 629, 851, 1955, 1985, 3145, 4255, 6749, 9131, 14467, 14689, 33745, 45655, 72335, 73445, 155227, 249713, 337847, 776135, 1248565, 1689235, 5743399, 28716995]

約数ペア:

[(1, 28716995), (5, 5743399), (17, 1689235), (23, 1248565), (37, 776135), (85, 337847), (115, 249713), (185, 155227), (391, 73445), (397, 72335), (629, 45655), (851, 33745), (1955, 14689), (1985, 14467), (3145, 9131), (4255, 6749)]