40964320

素因数分解:

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

素因数の和:1027

約数の個数: 48

約数和(自身を含む): 97161120

約数和(自身を除く): 56196800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 503, 509, 1006, 1018, 2012, 2036, 2515, 2545, 4024, 4072, 5030, 5090, 8048, 8144, 10060, 10180, 16096, 16288, 20120, 20360, 40240, 40720, 80480, 81440, 256027, 512054, 1024108, 1280135, 2048216, 2560270, 4096432, 5120540, 8192864, 10241080, 20482160, 40964320]

約数ペア:

[(1, 40964320), (2, 20482160), (4, 10241080), (5, 8192864), (8, 5120540), (10, 4096432), (16, 2560270), (20, 2048216), (32, 1280135), (40, 1024108), (80, 512054), (160, 256027), (503, 81440), (509, 80480), (1006, 40720), (1018, 40240), (2012, 20360), (2036, 20120), (2515, 16288), (2545, 16096), (4024, 10180), (4072, 10060), (5030, 8144), (5090, 8048)]