128533640

素因数分解:

$2^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{3323}}^1$

素因数の和:4301

約数の個数: 32

約数和(自身を含む): 289586880

約数和(自身を除く): 161053240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 967, 1934, 3323, 3868, 4835, 6646, 7736, 9670, 13292, 16615, 19340, 26584, 33230, 38680, 66460, 132920, 3213341, 6426682, 12853364, 16066705, 25706728, 32133410, 64266820, 128533640]

約数ペア:

[(1, 128533640), (2, 64266820), (4, 32133410), (5, 25706728), (8, 16066705), (10, 12853364), (20, 6426682), (40, 3213341), (967, 132920), (1934, 66460), (3323, 38680), (3868, 33230), (4835, 26584), (6646, 19340), (7736, 16615), (9670, 13292)]