1640129408

素因数分解:

$2^7\times {\mathrm{311}}^1\times {\mathrm{41201}}^1$

素因数の和:41526

約数の個数: 32

約数和(自身を含む): 3278031120

約数和(自身を除く): 1637901712

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 311, 622, 1244, 2488, 4976, 9952, 19904, 39808, 41201, 82402, 164804, 329608, 659216, 1318432, 2636864, 5273728, 12813511, 25627022, 51254044, 102508088, 205016176, 410032352, 820064704, 1640129408]

約数ペア:

[(1, 1640129408), (2, 820064704), (4, 410032352), (8, 205016176), (16, 102508088), (32, 51254044), (64, 25627022), (128, 12813511), (311, 5273728), (622, 2636864), (1244, 1318432), (2488, 659216), (4976, 329608), (9952, 164804), (19904, 82402), (39808, 41201)]