20482160

素因数分解:

$2^4\times 5^1\times {\mathrm{503}}^1\times {\mathrm{509}}^1$

素因数の和:1025

約数の個数: 40

約数和(自身を含む): 47809440

約数和(自身を除く): 27327280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503, 509, 1006, 1018, 2012, 2036, 2515, 2545, 4024, 4072, 5030, 5090, 8048, 8144, 10060, 10180, 20120, 20360, 40240, 40720, 256027, 512054, 1024108, 1280135, 2048216, 2560270, 4096432, 5120540, 10241080, 20482160]

約数ペア:

[(1, 20482160), (2, 10241080), (4, 5120540), (5, 4096432), (8, 2560270), (10, 2048216), (16, 1280135), (20, 1024108), (40, 512054), (80, 256027), (503, 40720), (509, 40240), (1006, 20360), (1018, 20120), (2012, 10180), (2036, 10060), (2515, 8144), (2545, 8048), (4024, 5090), (4072, 5030)]