19740507700

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{491}}^1\times {\mathrm{983}}^1$

素因数の和:1897

約数の個数: 72

約数和(自身を含む): 43072868160

約数和(自身を除く): 23332360460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 491, 818, 982, 983, 1636, 1964, 1966, 2045, 2455, 3932, 4090, 4910, 4915, 8180, 9820, 9830, 10225, 12275, 19660, 20450, 24550, 24575, 40900, 49100, 49150, 98300, 200819, 401638, 402047, 482653, 803276, 804094, 965306, 1004095, 1608188, 1930612, 2008190, 2010235, 2413265, 4016380, 4020470, 4826530, 5020475, 8040940, 9653060, 10040950, 10051175, 12066325, 20081900, 20102350, 24132650, 40204700, 48265300, 197405077, 394810154, 789620308, 987025385, 1974050770, 3948101540, 4935126925, 9870253850, 19740507700]

約数ペア:

[(1, 19740507700), (2, 9870253850), (4, 4935126925), (5, 3948101540), (10, 1974050770), (20, 987025385), (25, 789620308), (50, 394810154), (100, 197405077), (409, 48265300), (491, 40204700), (818, 24132650), (982, 20102350), (983, 20081900), (1636, 12066325), (1964, 10051175), (1966, 10040950), (2045, 9653060), (2455, 8040940), (3932, 5020475), (4090, 4826530), (4910, 4020470), (4915, 4016380), (8180, 2413265), (9820, 2010235), (9830, 2008190), (10225, 1930612), (12275, 1608188), (19660, 1004095), (20450, 965306), (24550, 804094), (24575, 803276), (40900, 482653), (49100, 402047), (49150, 401638), (98300, 200819)]