28781660

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{2861}}^1$

素因数の和:3373

約数の個数: 24

約数和(自身を含む): 60582816

約数和(自身を除く): 31801156

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 2861, 5030, 5722, 10060, 11444, 14305, 28610, 57220, 1439083, 2878166, 5756332, 7195415, 14390830, 28781660]

約数ペア:

[(1, 28781660), (2, 14390830), (4, 7195415), (5, 5756332), (10, 2878166), (20, 1439083), (503, 57220), (1006, 28610), (2012, 14305), (2515, 11444), (2861, 10060), (5030, 5722)]