638001884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{64237}}^1$

素因数の和:64445

約数の個数: 24

約数和(自身を含む): 1208702208

約数和(自身を除く): 570700324

約数列:

[1, 2, 4, 13, 26, 52, 191, 382, 764, 2483, 4966, 9932, 64237, 128474, 256948, 835081, 1670162, 3340324, 12269267, 24538534, 49077068, 159500471, 319000942, 638001884]

約数ペア:

[(1, 638001884), (2, 319000942), (4, 159500471), (13, 49077068), (26, 24538534), (52, 12269267), (191, 3340324), (382, 1670162), (764, 835081), (2483, 256948), (4966, 128474), (9932, 64237)]