18389601640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9781703}}^1$

素因数の和:9781761

約数の個数: 32

約数和(自身を含む): 42256961280

約数和(自身を除く): 23867359640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9781703, 19563406, 39126812, 48908515, 78253624, 97817030, 195634060, 391268120, 459740041, 919480082, 1838960164, 2298700205, 3677920328, 4597400410, 9194800820, 18389601640]

約数ペア:

[(1, 18389601640), (2, 9194800820), (4, 4597400410), (5, 3677920328), (8, 2298700205), (10, 1838960164), (20, 919480082), (40, 459740041), (47, 391268120), (94, 195634060), (188, 97817030), (235, 78253624), (376, 48908515), (470, 39126812), (940, 19563406), (1880, 9781703)]