19747550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{13619}}^1$

素因数の和:13660

約数の個数: 24

約数和(自身を含む): 37999800

約数和(自身を除く): 18252250

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 13619, 27238, 68095, 136190, 340475, 394951, 680950, 789902, 1974755, 3949510, 9873775, 19747550]

約数ペア:

[(1, 19747550), (2, 9873775), (5, 3949510), (10, 1974755), (25, 789902), (29, 680950), (50, 394951), (58, 340475), (145, 136190), (290, 68095), (725, 27238), (1450, 13619)]