40721656

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{64433}}^1$

素因数の和:64518

約数の個数: 16

約数和(自身を含む): 77320800

約数和(自身を除く): 36599144

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 64433, 128866, 257732, 515464, 5090207, 10180414, 20360828, 40721656]

約数ペア:

[(1, 40721656), (2, 20360828), (4, 10180414), (8, 5090207), (79, 515464), (158, 257732), (316, 128866), (632, 64433)]