75408020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{91961}}^1$

素因数の和:92011

約数の個数: 24

約数和(自身を含む): 162220968

約数和(自身を除く): 86812948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 91961, 183922, 367844, 459805, 919610, 1839220, 3770401, 7540802, 15081604, 18852005, 37704010, 75408020]

約数ペア:

[(1, 75408020), (2, 37704010), (4, 18852005), (5, 15081604), (10, 7540802), (20, 3770401), (41, 1839220), (82, 919610), (164, 459805), (205, 367844), (410, 183922), (820, 91961)]