28121776

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:821

約数の個数: 40

約数和(自身を含む): 56873840

約数和(自身を除く): 28752064

約数列:

[1, 2, 4, 8, 16, 37, 67, 74, 134, 148, 268, 296, 536, 592, 709, 1072, 1418, 2479, 2836, 4958, 5672, 9916, 11344, 19832, 26233, 39664, 47503, 52466, 95006, 104932, 190012, 209864, 380024, 419728, 760048, 1757611, 3515222, 7030444, 14060888, 28121776]

約数ペア:

[(1, 28121776), (2, 14060888), (4, 7030444), (8, 3515222), (16, 1757611), (37, 760048), (67, 419728), (74, 380024), (134, 209864), (148, 190012), (268, 104932), (296, 95006), (536, 52466), (592, 47503), (709, 39664), (1072, 26233), (1418, 19832), (2479, 11344), (2836, 9916), (4958, 5672)]