28205870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{5233}}^1$

素因数の和:5265

約数の個数: 48

約数和(自身を含む): 64441008

約数和(自身を除く): 36235138

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 5233, 5390, 10466, 26165, 36631, 52330, 57563, 73262, 115126, 183155, 256417, 287815, 366310, 402941, 512834, 575630, 805882, 1282085, 2014705, 2564170, 2820587, 4029410, 5641174, 14102935, 28205870]

約数ペア:

[(1, 28205870), (2, 14102935), (5, 5641174), (7, 4029410), (10, 2820587), (11, 2564170), (14, 2014705), (22, 1282085), (35, 805882), (49, 575630), (55, 512834), (70, 402941), (77, 366310), (98, 287815), (110, 256417), (154, 183155), (245, 115126), (385, 73262), (490, 57563), (539, 52330), (770, 36631), (1078, 26165), (2695, 10466), (5233, 5390)]