4000993280

素因数分解:

$2^{12}\times 5^1\times {\mathrm{347}}^1\times {\mathrm{563}}^1$

素因数の和:939

約数の個数: 104

約数和(自身を含む): 9645983712

約数和(自身を除く): 5644990432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 347, 512, 563, 640, 694, 1024, 1126, 1280, 1388, 1735, 2048, 2252, 2560, 2776, 2815, 3470, 4096, 4504, 5120, 5552, 5630, 6940, 9008, 10240, 11104, 11260, 13880, 18016, 20480, 22208, 22520, 27760, 36032, 44416, 45040, 55520, 72064, 88832, 90080, 111040, 144128, 177664, 180160, 195361, 222080, 288256, 355328, 360320, 390722, 444160, 576512, 710656, 720640, 781444, 888320, 976805, 1153024, 1421312, 1441280, 1562888, 1776640, 1953610, 2306048, 2882560, 3125776, 3553280, 3907220, 5765120, 6251552, 7106560, 7814440, 11530240, 12503104, 15628880, 25006208, 31257760, 50012416, 62515520, 100024832, 125031040, 200049664, 250062080, 400099328, 500124160, 800198656, 1000248320, 2000496640, 4000993280]

約数ペア:

[(1, 4000993280), (2, 2000496640), (4, 1000248320), (5, 800198656), (8, 500124160), (10, 400099328), (16, 250062080), (20, 200049664), (32, 125031040), (40, 100024832), (64, 62515520), (80, 50012416), (128, 31257760), (160, 25006208), (256, 15628880), (320, 12503104), (347, 11530240), (512, 7814440), (563, 7106560), (640, 6251552), (694, 5765120), (1024, 3907220), (1126, 3553280), (1280, 3125776), (1388, 2882560), (1735, 2306048), (2048, 1953610), (2252, 1776640), (2560, 1562888), (2776, 1441280), (2815, 1421312), (3470, 1153024), (4096, 976805), (4504, 888320), (5120, 781444), (5552, 720640), (5630, 710656), (6940, 576512), (9008, 444160), (10240, 390722), (11104, 360320), (11260, 355328), (13880, 288256), (18016, 222080), (20480, 195361), (22208, 180160), (22520, 177664), (27760, 144128), (36032, 111040), (44416, 90080), (45040, 88832), (55520, 72064)]