215241700

素因数分解:

$2^2\times 5^2\times {\mathrm{439}}^1\times {\mathrm{4903}}^1$

素因数の和:5356

約数の個数: 36

約数和(自身を含む): 468233920

約数和(自身を除く): 252992220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 439, 878, 1756, 2195, 4390, 4903, 8780, 9806, 10975, 19612, 21950, 24515, 43900, 49030, 98060, 122575, 245150, 490300, 2152417, 4304834, 8609668, 10762085, 21524170, 43048340, 53810425, 107620850, 215241700]

約数ペア:

[(1, 215241700), (2, 107620850), (4, 53810425), (5, 43048340), (10, 21524170), (20, 10762085), (25, 8609668), (50, 4304834), (100, 2152417), (439, 490300), (878, 245150), (1756, 122575), (2195, 98060), (4390, 49030), (4903, 43900), (8780, 24515), (9806, 21950), (10975, 19612)]