639968128

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{294103}}^1$

素因数の和:294134

約数の個数: 32

約数和(自身を含む): 1349937360

約数和(自身を除く): 709969232

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 1088, 2176, 294103, 588206, 1176412, 2352824, 4705648, 4999751, 9411296, 9999502, 18822592, 19999004, 37645184, 39998008, 79996016, 159992032, 319984064, 639968128]

約数ペア:

[(1, 639968128), (2, 319984064), (4, 159992032), (8, 79996016), (16, 39998008), (17, 37645184), (32, 19999004), (34, 18822592), (64, 9999502), (68, 9411296), (128, 4999751), (136, 4705648), (272, 2352824), (544, 1176412), (1088, 588206), (2176, 294103)]