16640128

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 33635520

約数和(自身を除く): 16995392

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 284, 568, 1136, 1831, 2272, 3662, 4544, 7324, 9088, 14648, 29296, 58592, 117184, 130001, 234368, 260002, 520004, 1040008, 2080016, 4160032, 8320064, 16640128]

約数ペア:

[(1, 16640128), (2, 8320064), (4, 4160032), (8, 2080016), (16, 1040008), (32, 520004), (64, 260002), (71, 234368), (128, 130001), (142, 117184), (284, 58592), (568, 29296), (1136, 14648), (1831, 9088), (2272, 7324), (3662, 4544)]