20123986148

素因数分解:

$2^2\times 7^1\times {\mathrm{19727}}^1\times {\mathrm{36433}}^1$

素因数の和:56171

約数の個数: 24

約数和(自身を含む): 40251117312

約数和(自身を除く): 20127131164

約数列:

[1, 2, 4, 7, 14, 28, 19727, 36433, 39454, 72866, 78908, 138089, 145732, 255031, 276178, 510062, 552356, 1020124, 718713791, 1437427582, 2874855164, 5030996537, 10061993074, 20123986148]

約数ペア:

[(1, 20123986148), (2, 10061993074), (4, 5030996537), (7, 2874855164), (14, 1437427582), (28, 718713791), (19727, 1020124), (36433, 552356), (39454, 510062), (72866, 276178), (78908, 255031), (138089, 145732)]