28774405

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 38304000

約数和(自身を除く): 9529595

約数列:

[1, 5, 11, 55, 121, 199, 239, 605, 995, 1195, 2189, 2629, 10945, 13145, 24079, 28919, 47561, 120395, 144595, 237805, 523171, 2615855, 5754881, 28774405]

約数ペア:

[(1, 28774405), (5, 5754881), (11, 2615855), (55, 523171), (121, 237805), (199, 144595), (239, 120395), (605, 47561), (995, 28919), (1195, 24079), (2189, 13145), (2629, 10945)]