89578720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 144

約数和(自身を含む): 266251104

約数和(自身を除く): 176672384

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 160, 176, 220, 224, 242, 280, 308, 352, 385, 440, 484, 560, 605, 616, 661, 770, 847, 880, 968, 1120, 1210, 1232, 1322, 1540, 1694, 1760, 1936, 2420, 2464, 2644, 3080, 3305, 3388, 3872, 4235, 4627, 4840, 5288, 6160, 6610, 6776, 7271, 8470, 9254, 9680, 10576, 12320, 13220, 13552, 14542, 16940, 18508, 19360, 21152, 23135, 26440, 27104, 29084, 33880, 36355, 37016, 46270, 50897, 52880, 58168, 67760, 72710, 74032, 79981, 92540, 101794, 105760, 116336, 135520, 145420, 148064, 159962, 185080, 203588, 232672, 254485, 290840, 319924, 370160, 399905, 407176, 508970, 559867, 581680, 639848, 740320, 799810, 814352, 1017940, 1119734, 1163360, 1279696, 1599620, 1628704, 2035880, 2239468, 2559392, 2799335, 3199240, 4071760, 4478936, 5598670, 6398480, 8143520, 8957872, 11197340, 12796960, 17915744, 22394680, 44789360, 89578720]

約数ペア:

[(1, 89578720), (2, 44789360), (4, 22394680), (5, 17915744), (7, 12796960), (8, 11197340), (10, 8957872), (11, 8143520), (14, 6398480), (16, 5598670), (20, 4478936), (22, 4071760), (28, 3199240), (32, 2799335), (35, 2559392), (40, 2239468), (44, 2035880), (55, 1628704), (56, 1599620), (70, 1279696), (77, 1163360), (80, 1119734), (88, 1017940), (110, 814352), (112, 799810), (121, 740320), (140, 639848), (154, 581680), (160, 559867), (176, 508970), (220, 407176), (224, 399905), (242, 370160), (280, 319924), (308, 290840), (352, 254485), (385, 232672), (440, 203588), (484, 185080), (560, 159962), (605, 148064), (616, 145420), (661, 135520), (770, 116336), (847, 105760), (880, 101794), (968, 92540), (1120, 79981), (1210, 74032), (1232, 72710), (1322, 67760), (1540, 58168), (1694, 52880), (1760, 50897), (1936, 46270), (2420, 37016), (2464, 36355), (2644, 33880), (3080, 29084), (3305, 27104), (3388, 26440), (3872, 23135), (4235, 21152), (4627, 19360), (4840, 18508), (5288, 16940), (6160, 14542), (6610, 13552), (6776, 13220), (7271, 12320), (8470, 10576), (9254, 9680)]