18730720

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{701}}^1$

素因数の和:883

約数の個数: 48

約数和(自身を含む): 44579808

約数和(自身を除く): 25849088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 701, 835, 1336, 1402, 1670, 2672, 2804, 3340, 3505, 5344, 5608, 6680, 7010, 11216, 13360, 14020, 22432, 26720, 28040, 56080, 112160, 117067, 234134, 468268, 585335, 936536, 1170670, 1873072, 2341340, 3746144, 4682680, 9365360, 18730720]

約数ペア:

[(1, 18730720), (2, 9365360), (4, 4682680), (5, 3746144), (8, 2341340), (10, 1873072), (16, 1170670), (20, 936536), (32, 585335), (40, 468268), (80, 234134), (160, 117067), (167, 112160), (334, 56080), (668, 28040), (701, 26720), (835, 22432), (1336, 14020), (1402, 13360), (1670, 11216), (2672, 7010), (2804, 6680), (3340, 5608), (3505, 5344)]