20008548400

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{2473}}^1$

素因数の和:2783

約数の個数: 120

約数和(自身を含む): 48786587280

約数和(自身を除く): 28778038880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 179, 200, 226, 358, 400, 452, 565, 716, 895, 904, 1130, 1432, 1790, 1808, 2260, 2473, 2825, 2864, 3580, 4475, 4520, 4946, 5650, 7160, 8950, 9040, 9892, 11300, 12365, 14320, 17900, 19784, 20227, 22600, 24730, 35800, 39568, 40454, 45200, 49460, 61825, 71600, 80908, 98920, 101135, 123650, 161816, 197840, 202270, 247300, 279449, 323632, 404540, 442667, 494600, 505675, 558898, 809080, 885334, 989200, 1011350, 1117796, 1397245, 1618160, 1770668, 2022700, 2213335, 2235592, 2794490, 3541336, 4045400, 4426670, 4471184, 5588980, 6986225, 7082672, 8090800, 8853340, 11066675, 11177960, 13972450, 17706680, 22133350, 22355920, 27944900, 35413360, 44266700, 50021371, 55889800, 88533400, 100042742, 111779600, 177066800, 200085484, 250106855, 400170968, 500213710, 800341936, 1000427420, 1250534275, 2000854840, 2501068550, 4001709680, 5002137100, 10004274200, 20008548400]

約数ペア:

[(1, 20008548400), (2, 10004274200), (4, 5002137100), (5, 4001709680), (8, 2501068550), (10, 2000854840), (16, 1250534275), (20, 1000427420), (25, 800341936), (40, 500213710), (50, 400170968), (80, 250106855), (100, 200085484), (113, 177066800), (179, 111779600), (200, 100042742), (226, 88533400), (358, 55889800), (400, 50021371), (452, 44266700), (565, 35413360), (716, 27944900), (895, 22355920), (904, 22133350), (1130, 17706680), (1432, 13972450), (1790, 11177960), (1808, 11066675), (2260, 8853340), (2473, 8090800), (2825, 7082672), (2864, 6986225), (3580, 5588980), (4475, 4471184), (4520, 4426670), (4946, 4045400), (5650, 3541336), (7160, 2794490), (8950, 2235592), (9040, 2213335), (9892, 2022700), (11300, 1770668), (12365, 1618160), (14320, 1397245), (17900, 1117796), (19784, 1011350), (20227, 989200), (22600, 885334), (24730, 809080), (35800, 558898), (39568, 505675), (40454, 494600), (45200, 442667), (49460, 404540), (61825, 323632), (71600, 279449), (80908, 247300), (98920, 202270), (101135, 197840), (123650, 161816)]