79984880

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2053}}^1$

素因数の和:2553

約数の個数: 40

約数和(自身を含む): 186437472

約数和(自身を除く): 106452592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2053, 2435, 3896, 4106, 4870, 7792, 8212, 9740, 10265, 16424, 19480, 20530, 32848, 38960, 41060, 82120, 164240, 999811, 1999622, 3999244, 4999055, 7998488, 9998110, 15996976, 19996220, 39992440, 79984880]

約数ペア:

[(1, 79984880), (2, 39992440), (4, 19996220), (5, 15996976), (8, 9998110), (10, 7998488), (16, 4999055), (20, 3999244), (40, 1999622), (80, 999811), (487, 164240), (974, 82120), (1948, 41060), (2053, 38960), (2435, 32848), (3896, 20530), (4106, 19480), (4870, 16424), (7792, 10265), (8212, 9740)]