28989108

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 77296128

約数和(自身を除く): 48307020

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 157, 207, 223, 276, 314, 414, 446, 471, 628, 669, 828, 892, 942, 1338, 1413, 1884, 2007, 2676, 2826, 3611, 4014, 5129, 5652, 7222, 8028, 10258, 10833, 14444, 15387, 20516, 21666, 30774, 32499, 35011, 43332, 46161, 61548, 64998, 70022, 92322, 105033, 129996, 140044, 184644, 210066, 315099, 420132, 630198, 805253, 1260396, 1610506, 2415759, 3221012, 4831518, 7247277, 9663036, 14494554, 28989108]

約数ペア:

[(1, 28989108), (2, 14494554), (3, 9663036), (4, 7247277), (6, 4831518), (9, 3221012), (12, 2415759), (18, 1610506), (23, 1260396), (36, 805253), (46, 630198), (69, 420132), (92, 315099), (138, 210066), (157, 184644), (207, 140044), (223, 129996), (276, 105033), (314, 92322), (414, 70022), (446, 64998), (471, 61548), (628, 46161), (669, 43332), (828, 35011), (892, 32499), (942, 30774), (1338, 21666), (1413, 20516), (1884, 15387), (2007, 14444), (2676, 10833), (2826, 10258), (3611, 8028), (4014, 7222), (5129, 5652)]