78429220

素因数分解:

$2^2\times 5^1\times {\mathrm{1753}}^1\times {\mathrm{2237}}^1$

素因数の和:3999

約数の個数: 24

約数和(自身を含む): 164868984

約数和(自身を除く): 86439764

約数列:

[1, 2, 4, 5, 10, 20, 1753, 2237, 3506, 4474, 7012, 8765, 8948, 11185, 17530, 22370, 35060, 44740, 3921461, 7842922, 15685844, 19607305, 39214610, 78429220]

約数ペア:

[(1, 78429220), (2, 39214610), (4, 19607305), (5, 15685844), (10, 7842922), (20, 3921461), (1753, 44740), (2237, 35060), (3506, 22370), (4474, 17530), (7012, 11185), (8765, 8948)]