21801040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9397}}^1$

素因数の和:9439

約数の個数: 40

約数和(自身を含む): 52440840

約数和(自身を除く): 30639800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9397, 18794, 37588, 46985, 75176, 93970, 150352, 187940, 272513, 375880, 545026, 751760, 1090052, 1362565, 2180104, 2725130, 4360208, 5450260, 10900520, 21801040]

約数ペア:

[(1, 21801040), (2, 10900520), (4, 5450260), (5, 4360208), (8, 2725130), (10, 2180104), (16, 1362565), (20, 1090052), (29, 751760), (40, 545026), (58, 375880), (80, 272513), (116, 187940), (145, 150352), (232, 93970), (290, 75176), (464, 46985), (580, 37588), (1160, 18794), (2320, 9397)]