289164880

素因数分解:

$2^4\times 5^1\times {\mathrm{3614561}}^1$

素因数の和:3614574

約数の個数: 20

約数和(自身を含む): 672308532

約数和(自身を除く): 383143652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3614561, 7229122, 14458244, 18072805, 28916488, 36145610, 57832976, 72291220, 144582440, 289164880]

約数ペア:

[(1, 289164880), (2, 144582440), (4, 72291220), (5, 57832976), (8, 36145610), (10, 28916488), (16, 18072805), (20, 14458244), (40, 7229122), (80, 3614561)]