28705664

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{1327}}^1$

素因数の和:1367

約数の個数: 48

約数和(自身を含む): 61971120

約数和(自身を除く): 33265456

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 338, 416, 676, 832, 1327, 1352, 1664, 2654, 2704, 5308, 5408, 10616, 10816, 17251, 21232, 21632, 34502, 42464, 69004, 84928, 138008, 169856, 224263, 276016, 448526, 552032, 897052, 1104064, 1794104, 2208128, 3588208, 7176416, 14352832, 28705664]

約数ペア:

[(1, 28705664), (2, 14352832), (4, 7176416), (8, 3588208), (13, 2208128), (16, 1794104), (26, 1104064), (32, 897052), (52, 552032), (64, 448526), (104, 276016), (128, 224263), (169, 169856), (208, 138008), (338, 84928), (416, 69004), (676, 42464), (832, 34502), (1327, 21632), (1352, 21232), (1664, 17251), (2654, 10816), (2704, 10616), (5308, 5408)]