12491120

素因数分解:

$2^4\times 5^1\times {\mathrm{156139}}^1$

素因数の和:156152

約数の個数: 20

約数和(自身を含む): 29042040

約数和(自身を除く): 16550920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156139, 312278, 624556, 780695, 1249112, 1561390, 2498224, 3122780, 6245560, 12491120]

約数ペア:

[(1, 12491120), (2, 6245560), (4, 3122780), (5, 2498224), (8, 1561390), (10, 1249112), (16, 780695), (20, 624556), (40, 312278), (80, 156139)]