2019969940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1\times {\mathrm{4637}}^1$

素因数の和:5616

約数の個数: 48

約数和(自身を含む): 4431998592

約数和(自身を除く): 2412028652

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 947, 1894, 3788, 4637, 4735, 9274, 9470, 18548, 18940, 21781, 23185, 43562, 46370, 87124, 92740, 106651, 108905, 213302, 217810, 426604, 435620, 533255, 1066510, 2133020, 4391239, 8782478, 17564956, 21956195, 43912390, 87824780, 100998497, 201996994, 403993988, 504992485, 1009984970, 2019969940]

約数ペア:

[(1, 2019969940), (2, 1009984970), (4, 504992485), (5, 403993988), (10, 201996994), (20, 100998497), (23, 87824780), (46, 43912390), (92, 21956195), (115, 17564956), (230, 8782478), (460, 4391239), (947, 2133020), (1894, 1066510), (3788, 533255), (4637, 435620), (4735, 426604), (9274, 217810), (9470, 213302), (18548, 108905), (18940, 106651), (21781, 92740), (23185, 87124), (43562, 46370)]