31630736720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1999}}^1\times {\mathrm{17981}}^1$

素因数の和:20004

約数の個数: 80

約数和(自身を含む): 80271648000

約数和(自身を除く): 48640911280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1999, 3998, 7996, 9995, 15992, 17981, 19990, 21989, 31984, 35962, 39980, 43978, 71924, 79960, 87956, 89905, 109945, 143848, 159920, 175912, 179810, 197791, 219890, 287696, 351824, 359620, 395582, 439780, 719240, 791164, 879560, 988955, 1438480, 1582328, 1759120, 1977910, 3164656, 3955820, 7911640, 15823280, 35944019, 71888038, 143776076, 179720095, 287552152, 359440190, 395384209, 575104304, 718880380, 790768418, 1437760760, 1581536836, 1976921045, 2875521520, 3163073672, 3953842090, 6326147344, 7907684180, 15815368360, 31630736720]

約数ペア:

[(1, 31630736720), (2, 15815368360), (4, 7907684180), (5, 6326147344), (8, 3953842090), (10, 3163073672), (11, 2875521520), (16, 1976921045), (20, 1581536836), (22, 1437760760), (40, 790768418), (44, 718880380), (55, 575104304), (80, 395384209), (88, 359440190), (110, 287552152), (176, 179720095), (220, 143776076), (440, 71888038), (880, 35944019), (1999, 15823280), (3998, 7911640), (7996, 3955820), (9995, 3164656), (15992, 1977910), (17981, 1759120), (19990, 1582328), (21989, 1438480), (31984, 988955), (35962, 879560), (39980, 791164), (43978, 719240), (71924, 439780), (79960, 395582), (87956, 359620), (89905, 351824), (109945, 287696), (143848, 219890), (159920, 197791), (175912, 179810)]