71891215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3343}}^1$

素因数の和:3399

約数の個数: 32

約数和(自身を含む): 104011776

約数和(自身を除く): 32120561

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1265, 1955, 3343, 4301, 16715, 21505, 36773, 56831, 76889, 183865, 284155, 384445, 625141, 845779, 1307113, 3125705, 4228895, 6535565, 14378243, 71891215]

約数ペア:

[(1, 71891215), (5, 14378243), (11, 6535565), (17, 4228895), (23, 3125705), (55, 1307113), (85, 845779), (115, 625141), (187, 384445), (253, 284155), (391, 183865), (935, 76889), (1265, 56831), (1955, 36773), (3343, 21505), (4301, 16715)]