221845340

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{859}}^1$

素因数の和:1254

約数の個数: 48

約数和(自身を含む): 480396000

約数和(自身を除く): 258550660

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 349, 370, 698, 740, 859, 1396, 1718, 1745, 3436, 3490, 4295, 6980, 8590, 12913, 17180, 25826, 31783, 51652, 63566, 64565, 127132, 129130, 158915, 258260, 299791, 317830, 599582, 635660, 1199164, 1498955, 2997910, 5995820, 11092267, 22184534, 44369068, 55461335, 110922670, 221845340]

約数ペア:

[(1, 221845340), (2, 110922670), (4, 55461335), (5, 44369068), (10, 22184534), (20, 11092267), (37, 5995820), (74, 2997910), (148, 1498955), (185, 1199164), (349, 635660), (370, 599582), (698, 317830), (740, 299791), (859, 258260), (1396, 158915), (1718, 129130), (1745, 127132), (3436, 64565), (3490, 63566), (4295, 51652), (6980, 31783), (8590, 25826), (12913, 17180)]