127920005560

素因数分解:

$2^3\times 5^1\times {\mathrm{3198000139}}^1$

素因数の和:3198000150

約数の個数: 16

約数和(自身を含む): 287820012600

約数和(自身を除く): 159900007040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3198000139, 6396000278, 12792000556, 15990000695, 25584001112, 31980001390, 63960002780, 127920005560]

約数ペア:

[(1, 127920005560), (2, 63960002780), (4, 31980001390), (5, 25584001112), (8, 15990000695), (10, 12792000556), (20, 6396000278), (40, 3198000139)]