216991686400

素因数分解:

$2^8\times 5^2\times {\mathrm{401}}^1\times {\mathrm{84551}}^1$

素因数の和:84978

約数の個数: 108

約数和(自身を含む): 538434069264

約数和(自身を除く): 321442382864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 401, 640, 800, 802, 1280, 1600, 1604, 2005, 3200, 3208, 4010, 6400, 6416, 8020, 10025, 12832, 16040, 20050, 25664, 32080, 40100, 51328, 64160, 80200, 84551, 102656, 128320, 160400, 169102, 256640, 320800, 338204, 422755, 513280, 641600, 676408, 845510, 1283200, 1352816, 1691020, 2113775, 2566400, 2705632, 3382040, 4227550, 5411264, 6764080, 8455100, 10822528, 13528160, 16910200, 21645056, 27056320, 33820400, 33904951, 54112640, 67640800, 67809902, 108225280, 135281600, 135619804, 169524755, 270563200, 271239608, 339049510, 541126400, 542479216, 678099020, 847623775, 1084958432, 1356198040, 1695247550, 2169916864, 2712396080, 3390495100, 4339833728, 5424792160, 6780990200, 8679667456, 10849584320, 13561980400, 21699168640, 27123960800, 43398337280, 54247921600, 108495843200, 216991686400]

約数ペア:

[(1, 216991686400), (2, 108495843200), (4, 54247921600), (5, 43398337280), (8, 27123960800), (10, 21699168640), (16, 13561980400), (20, 10849584320), (25, 8679667456), (32, 6780990200), (40, 5424792160), (50, 4339833728), (64, 3390495100), (80, 2712396080), (100, 2169916864), (128, 1695247550), (160, 1356198040), (200, 1084958432), (256, 847623775), (320, 678099020), (400, 542479216), (401, 541126400), (640, 339049510), (800, 271239608), (802, 270563200), (1280, 169524755), (1600, 135619804), (1604, 135281600), (2005, 108225280), (3200, 67809902), (3208, 67640800), (4010, 54112640), (6400, 33904951), (6416, 33820400), (8020, 27056320), (10025, 21645056), (12832, 16910200), (16040, 13528160), (20050, 10822528), (25664, 8455100), (32080, 6764080), (40100, 5411264), (51328, 4227550), (64160, 3382040), (80200, 2705632), (84551, 2566400), (102656, 2113775), (128320, 1691020), (160400, 1352816), (169102, 1283200), (256640, 845510), (320800, 676408), (338204, 641600), (422755, 513280)]