20471120

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3083}}^1$

素因数の和:3179

約数の個数: 40

約数和(自身を含む): 48184416

約数和(自身を除く): 27713296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3083, 3320, 6166, 6640, 12332, 15415, 24664, 30830, 49328, 61660, 123320, 246640, 255889, 511778, 1023556, 1279445, 2047112, 2558890, 4094224, 5117780, 10235560, 20471120]

約数ペア:

[(1, 20471120), (2, 10235560), (4, 5117780), (5, 4094224), (8, 2558890), (10, 2047112), (16, 1279445), (20, 1023556), (40, 511778), (80, 255889), (83, 246640), (166, 123320), (332, 61660), (415, 49328), (664, 30830), (830, 24664), (1328, 15415), (1660, 12332), (3083, 6640), (3320, 6166)]