77887905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1423}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 129185280

約数和(自身を除く): 51297375

約数列:

[1, 3, 5, 15, 41, 89, 123, 205, 267, 445, 615, 1335, 1423, 3649, 4269, 7115, 10947, 18245, 21345, 54735, 58343, 126647, 175029, 291715, 379941, 633235, 875145, 1899705, 5192527, 15577581, 25962635, 77887905]

約数ペア:

[(1, 77887905), (3, 25962635), (5, 15577581), (15, 5192527), (41, 1899705), (89, 875145), (123, 633235), (205, 379941), (267, 291715), (445, 175029), (615, 126647), (1335, 58343), (1423, 54735), (3649, 21345), (4269, 18245), (7115, 10947)]