28400285

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 9961315

約数列:

[1, 5, 17, 23, 73, 85, 115, 199, 365, 391, 995, 1241, 1679, 1955, 3383, 4577, 6205, 8395, 14527, 16915, 22885, 28543, 72635, 77809, 142715, 246959, 334121, 389045, 1234795, 1670605, 5680057, 28400285]

約数ペア:

[(1, 28400285), (5, 5680057), (17, 1670605), (23, 1234795), (73, 389045), (85, 334121), (115, 246959), (199, 142715), (365, 77809), (391, 72635), (995, 28543), (1241, 22885), (1679, 16915), (1955, 14527), (3383, 8395), (4577, 6205)]