17899681340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1\times {\mathrm{18287}}^1$

素因数の和:18854

約数の個数: 48

約数和(自身を含む): 38020752000

約数和(自身を除く): 20121070660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 449, 545, 898, 1090, 1796, 2180, 2245, 4490, 8980, 18287, 36574, 48941, 73148, 91435, 97882, 182870, 195764, 244705, 365740, 489410, 978820, 1993283, 3986566, 7973132, 8210863, 9966415, 16421726, 19932830, 32843452, 39865660, 41054315, 82108630, 164217260, 894984067, 1789968134, 3579936268, 4474920335, 8949840670, 17899681340]

約数ペア:

[(1, 17899681340), (2, 8949840670), (4, 4474920335), (5, 3579936268), (10, 1789968134), (20, 894984067), (109, 164217260), (218, 82108630), (436, 41054315), (449, 39865660), (545, 32843452), (898, 19932830), (1090, 16421726), (1796, 9966415), (2180, 8210863), (2245, 7973132), (4490, 3986566), (8980, 1993283), (18287, 978820), (36574, 489410), (48941, 365740), (73148, 244705), (91435, 195764), (97882, 182870)]