128268028

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{18251}}^1$

素因数の和:18513

約数の個数: 24

約数和(自身を含む): 257572224

約数和(自身を除く): 129304196

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 3514, 7028, 18251, 36502, 73004, 127757, 255514, 511028, 4581001, 9162002, 18324004, 32067007, 64134014, 128268028]

約数ペア:

[(1, 128268028), (2, 64134014), (4, 32067007), (7, 18324004), (14, 9162002), (28, 4581001), (251, 511028), (502, 255514), (1004, 127757), (1757, 73004), (3514, 36502), (7028, 18251)]