1378220

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 2921184

約数和(自身を除く): 1542964

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 503, 548, 685, 1006, 1370, 2012, 2515, 2740, 5030, 10060, 68911, 137822, 275644, 344555, 689110, 1378220]

約数ペア:

[(1, 1378220), (2, 689110), (4, 344555), (5, 275644), (10, 137822), (20, 68911), (137, 10060), (274, 5030), (503, 2740), (548, 2515), (685, 2012), (1006, 1370)]