138412900

素因数分解:

$2^2\times 5^2\times {\mathrm{491}}^1\times {\mathrm{2819}}^1$

素因数の和:3324

約数の個数: 36

約数和(自身を含む): 301074480

約数和(自身を除く): 162661580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 491, 982, 1964, 2455, 2819, 4910, 5638, 9820, 11276, 12275, 14095, 24550, 28190, 49100, 56380, 70475, 140950, 281900, 1384129, 2768258, 5536516, 6920645, 13841290, 27682580, 34603225, 69206450, 138412900]

約数ペア:

[(1, 138412900), (2, 69206450), (4, 34603225), (5, 27682580), (10, 13841290), (20, 6920645), (25, 5536516), (50, 2768258), (100, 1384129), (491, 281900), (982, 140950), (1964, 70475), (2455, 56380), (2819, 49100), (4910, 28190), (5638, 24550), (9820, 14095), (11276, 12275)]