291264640

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:510

約数の個数: 128

約数和(自身を含む): 743800320

約数和(自身を除く): 452535680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 47, 64, 80, 92, 94, 115, 128, 160, 184, 188, 230, 235, 320, 368, 376, 421, 460, 470, 640, 736, 752, 842, 920, 940, 1081, 1472, 1504, 1684, 1840, 1880, 2105, 2162, 2944, 3008, 3368, 3680, 3760, 4210, 4324, 5405, 6016, 6736, 7360, 7520, 8420, 8648, 9683, 10810, 13472, 14720, 15040, 16840, 17296, 19366, 19787, 21620, 26944, 30080, 33680, 34592, 38732, 39574, 43240, 48415, 53888, 67360, 69184, 77464, 79148, 86480, 96830, 98935, 134720, 138368, 154928, 158296, 172960, 193660, 197870, 269440, 309856, 316592, 345920, 387320, 395740, 455101, 619712, 633184, 691840, 774640, 791480, 910202, 1239424, 1266368, 1549280, 1582960, 1820404, 2275505, 2532736, 3098560, 3165920, 3640808, 4551010, 6197120, 6331840, 7281616, 9102020, 12663680, 14563232, 18204040, 29126464, 36408080, 58252928, 72816160, 145632320, 291264640]

約数ペア:

[(1, 291264640), (2, 145632320), (4, 72816160), (5, 58252928), (8, 36408080), (10, 29126464), (16, 18204040), (20, 14563232), (23, 12663680), (32, 9102020), (40, 7281616), (46, 6331840), (47, 6197120), (64, 4551010), (80, 3640808), (92, 3165920), (94, 3098560), (115, 2532736), (128, 2275505), (160, 1820404), (184, 1582960), (188, 1549280), (230, 1266368), (235, 1239424), (320, 910202), (368, 791480), (376, 774640), (421, 691840), (460, 633184), (470, 619712), (640, 455101), (736, 395740), (752, 387320), (842, 345920), (920, 316592), (940, 309856), (1081, 269440), (1472, 197870), (1504, 193660), (1684, 172960), (1840, 158296), (1880, 154928), (2105, 138368), (2162, 134720), (2944, 98935), (3008, 96830), (3368, 86480), (3680, 79148), (3760, 77464), (4210, 69184), (4324, 67360), (5405, 53888), (6016, 48415), (6736, 43240), (7360, 39574), (7520, 38732), (8420, 34592), (8648, 33680), (9683, 30080), (10810, 26944), (13472, 21620), (14720, 19787), (15040, 19366), (16840, 17296)]