20605400

素因数分解:

$2^3\times 5^2\times {\mathrm{269}}^1\times {\mathrm{383}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 48211200

約数和(自身を除く): 27605800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 269, 383, 538, 766, 1076, 1345, 1532, 1915, 2152, 2690, 3064, 3830, 5380, 6725, 7660, 9575, 10760, 13450, 15320, 19150, 26900, 38300, 53800, 76600, 103027, 206054, 412108, 515135, 824216, 1030270, 2060540, 2575675, 4121080, 5151350, 10302700, 20605400]

約数ペア:

[(1, 20605400), (2, 10302700), (4, 5151350), (5, 4121080), (8, 2575675), (10, 2060540), (20, 1030270), (25, 824216), (40, 515135), (50, 412108), (100, 206054), (200, 103027), (269, 76600), (383, 53800), (538, 38300), (766, 26900), (1076, 19150), (1345, 15320), (1532, 13450), (1915, 10760), (2152, 9575), (2690, 7660), (3064, 6725), (3830, 5380)]