80640435

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{4003}}^1$

素因数の和:4107

約数の個数: 32

約数和(自身を含む): 138378240

約数和(自身を除く): 57737805

約数列:

[1, 3, 5, 15, 17, 51, 79, 85, 237, 255, 395, 1185, 1343, 4003, 4029, 6715, 12009, 20015, 20145, 60045, 68051, 204153, 316237, 340255, 948711, 1020765, 1581185, 4743555, 5376029, 16128087, 26880145, 80640435]

約数ペア:

[(1, 80640435), (3, 26880145), (5, 16128087), (15, 5376029), (17, 4743555), (51, 1581185), (79, 1020765), (85, 948711), (237, 340255), (255, 316237), (395, 204153), (1185, 68051), (1343, 60045), (4003, 20145), (4029, 20015), (6715, 12009)]