72913520

素因数分解:

$2^4\times 5^1\times {\mathrm{911419}}^1$

素因数の和:911432

約数の個数: 20

約数和(自身を含む): 169524120

約数和(自身を除く): 96610600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911419, 1822838, 3645676, 4557095, 7291352, 9114190, 14582704, 18228380, 36456760, 72913520]

約数ペア:

[(1, 72913520), (2, 36456760), (4, 18228380), (5, 14582704), (8, 9114190), (10, 7291352), (16, 4557095), (20, 3645676), (40, 1822838), (80, 911419)]