19539640

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2729}}^1$

素因数の和:2919

約数の個数: 32

約数和(自身を含む): 44226000

約数和(自身を除く): 24686360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2729, 3580, 5458, 7160, 10916, 13645, 21832, 27290, 54580, 109160, 488491, 976982, 1953964, 2442455, 3907928, 4884910, 9769820, 19539640]

約数ペア:

[(1, 19539640), (2, 9769820), (4, 4884910), (5, 3907928), (8, 2442455), (10, 1953964), (20, 976982), (40, 488491), (179, 109160), (358, 54580), (716, 27290), (895, 21832), (1432, 13645), (1790, 10916), (2729, 7160), (3580, 5458)]