19857250

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{1621}}^1$

素因数の和:1652

約数の個数: 48

約数和(自身を含む): 43268472

約数和(自身を除く): 23411222

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1621, 1750, 2450, 3242, 6125, 8105, 11347, 12250, 16210, 22694, 40525, 56735, 79429, 81050, 113470, 158858, 202625, 283675, 397145, 405250, 567350, 794290, 1418375, 1985725, 2836750, 3971450, 9928625, 19857250]

約数ペア:

[(1, 19857250), (2, 9928625), (5, 3971450), (7, 2836750), (10, 1985725), (14, 1418375), (25, 794290), (35, 567350), (49, 405250), (50, 397145), (70, 283675), (98, 202625), (125, 158858), (175, 113470), (245, 81050), (250, 79429), (350, 56735), (490, 40525), (875, 22694), (1225, 16210), (1621, 12250), (1750, 11347), (2450, 8105), (3242, 6125)]