28490560

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 168

約数和(自身を含む): 83393280

約数和(自身を除く): 54902720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 79, 80, 92, 98, 112, 115, 140, 158, 160, 161, 184, 196, 224, 230, 245, 280, 316, 320, 322, 368, 392, 395, 448, 460, 490, 553, 560, 632, 644, 736, 784, 790, 805, 920, 980, 1106, 1120, 1127, 1264, 1288, 1472, 1568, 1580, 1610, 1817, 1840, 1960, 2212, 2240, 2254, 2528, 2576, 2765, 3136, 3160, 3220, 3634, 3680, 3871, 3920, 4424, 4508, 5056, 5152, 5530, 5635, 6320, 6440, 7268, 7360, 7742, 7840, 8848, 9016, 9085, 10304, 11060, 11270, 12640, 12719, 12880, 14536, 15484, 15680, 17696, 18032, 18170, 19355, 22120, 22540, 25280, 25438, 25760, 29072, 30968, 35392, 36064, 36340, 38710, 44240, 45080, 50876, 51520, 58144, 61936, 63595, 72128, 72680, 77420, 88480, 89033, 90160, 101752, 116288, 123872, 127190, 145360, 154840, 176960, 178066, 180320, 203504, 247744, 254380, 290720, 309680, 356132, 360640, 407008, 445165, 508760, 581440, 619360, 712264, 814016, 890330, 1017520, 1238720, 1424528, 1780660, 2035040, 2849056, 3561320, 4070080, 5698112, 7122640, 14245280, 28490560]

約数ペア:

[(1, 28490560), (2, 14245280), (4, 7122640), (5, 5698112), (7, 4070080), (8, 3561320), (10, 2849056), (14, 2035040), (16, 1780660), (20, 1424528), (23, 1238720), (28, 1017520), (32, 890330), (35, 814016), (40, 712264), (46, 619360), (49, 581440), (56, 508760), (64, 445165), (70, 407008), (79, 360640), (80, 356132), (92, 309680), (98, 290720), (112, 254380), (115, 247744), (140, 203504), (158, 180320), (160, 178066), (161, 176960), (184, 154840), (196, 145360), (224, 127190), (230, 123872), (245, 116288), (280, 101752), (316, 90160), (320, 89033), (322, 88480), (368, 77420), (392, 72680), (395, 72128), (448, 63595), (460, 61936), (490, 58144), (553, 51520), (560, 50876), (632, 45080), (644, 44240), (736, 38710), (784, 36340), (790, 36064), (805, 35392), (920, 30968), (980, 29072), (1106, 25760), (1120, 25438), (1127, 25280), (1264, 22540), (1288, 22120), (1472, 19355), (1568, 18170), (1580, 18032), (1610, 17696), (1817, 15680), (1840, 15484), (1960, 14536), (2212, 12880), (2240, 12719), (2254, 12640), (2528, 11270), (2576, 11060), (2765, 10304), (3136, 9085), (3160, 9016), (3220, 8848), (3634, 7840), (3680, 7742), (3871, 7360), (3920, 7268), (4424, 6440), (4508, 6320), (5056, 5635), (5152, 5530)]