55728020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67961}}^1$

素因数の和:68011

約数の個数: 24

約数和(自身を含む): 119884968

約数和(自身を除く): 64156948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 67961, 135922, 271844, 339805, 679610, 1359220, 2786401, 5572802, 11145604, 13932005, 27864010, 55728020]

約数ペア:

[(1, 55728020), (2, 27864010), (4, 13932005), (5, 11145604), (10, 5572802), (20, 2786401), (41, 1359220), (82, 679610), (164, 339805), (205, 271844), (410, 135922), (820, 67961)]