19923980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43313}}^1$

素因数の和:43345

約数の個数: 24

約数和(自身を含む): 43660512

約数和(自身を除く): 23736532

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 43313, 86626, 173252, 216565, 433130, 866260, 996199, 1992398, 3984796, 4980995, 9961990, 19923980]

約数ペア:

[(1, 19923980), (2, 9961990), (4, 4980995), (5, 3984796), (10, 1992398), (20, 996199), (23, 866260), (46, 433130), (92, 216565), (115, 173252), (230, 86626), (460, 43313)]