28879676

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 59673600

約数和(自身を除く): 30793924

約数列:

[1, 2, 4, 7, 14, 28, 71, 73, 142, 146, 199, 284, 292, 398, 497, 511, 796, 994, 1022, 1393, 1988, 2044, 2786, 5183, 5572, 10366, 14129, 14527, 20732, 28258, 29054, 36281, 56516, 58108, 72562, 98903, 101689, 145124, 197806, 203378, 395612, 406756, 1031417, 2062834, 4125668, 7219919, 14439838, 28879676]

約数ペア:

[(1, 28879676), (2, 14439838), (4, 7219919), (7, 4125668), (14, 2062834), (28, 1031417), (71, 406756), (73, 395612), (142, 203378), (146, 197806), (199, 145124), (284, 101689), (292, 98903), (398, 72562), (497, 58108), (511, 56516), (796, 36281), (994, 29054), (1022, 28258), (1393, 20732), (1988, 14527), (2044, 14129), (2786, 10366), (5183, 5572)]