28187972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 55520640

約数和(自身を除く): 27332668

約数列:

[1, 2, 4, 17, 23, 34, 46, 67, 68, 92, 134, 268, 269, 391, 538, 782, 1076, 1139, 1541, 1564, 2278, 3082, 4556, 4573, 6164, 6187, 9146, 12374, 18023, 18292, 24748, 26197, 36046, 52394, 72092, 104788, 105179, 210358, 306391, 414529, 420716, 612782, 829058, 1225564, 1658116, 7046993, 14093986, 28187972]

約数ペア:

[(1, 28187972), (2, 14093986), (4, 7046993), (17, 1658116), (23, 1225564), (34, 829058), (46, 612782), (67, 420716), (68, 414529), (92, 306391), (134, 210358), (268, 105179), (269, 104788), (391, 72092), (538, 52394), (782, 36046), (1076, 26197), (1139, 24748), (1541, 18292), (1564, 18023), (2278, 12374), (3082, 9146), (4556, 6187), (4573, 6164)]