28154280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{277}}^1$

素因数の和:320

約数の個数: 192

約数和(自身を含む): 106485120

約数和(自身を除く): 78330840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 121, 132, 140, 154, 165, 168, 210, 220, 231, 242, 264, 277, 280, 308, 330, 363, 385, 420, 440, 462, 484, 554, 605, 616, 660, 726, 770, 831, 840, 847, 924, 968, 1108, 1155, 1210, 1320, 1385, 1452, 1540, 1662, 1694, 1815, 1848, 1939, 2216, 2310, 2420, 2541, 2770, 2904, 3047, 3080, 3324, 3388, 3630, 3878, 4155, 4235, 4620, 4840, 5082, 5540, 5817, 6094, 6648, 6776, 7260, 7756, 8310, 8470, 9141, 9240, 9695, 10164, 11080, 11634, 12188, 12705, 14520, 15235, 15512, 16620, 16940, 18282, 19390, 20328, 21329, 23268, 24376, 25410, 29085, 30470, 33240, 33517, 33880, 36564, 38780, 42658, 45705, 46536, 50820, 58170, 60940, 63987, 67034, 73128, 77560, 85316, 91410, 100551, 101640, 106645, 116340, 121880, 127974, 134068, 167585, 170632, 182820, 201102, 213290, 232680, 234619, 255948, 268136, 319935, 335170, 365640, 402204, 426580, 469238, 502755, 511896, 639870, 670340, 703857, 804408, 853160, 938476, 1005510, 1173095, 1279740, 1340680, 1407714, 1876952, 2011020, 2346190, 2559480, 2815428, 3519285, 4022040, 4692380, 5630856, 7038570, 9384760, 14077140, 28154280]

約数ペア:

[(1, 28154280), (2, 14077140), (3, 9384760), (4, 7038570), (5, 5630856), (6, 4692380), (7, 4022040), (8, 3519285), (10, 2815428), (11, 2559480), (12, 2346190), (14, 2011020), (15, 1876952), (20, 1407714), (21, 1340680), (22, 1279740), (24, 1173095), (28, 1005510), (30, 938476), (33, 853160), (35, 804408), (40, 703857), (42, 670340), (44, 639870), (55, 511896), (56, 502755), (60, 469238), (66, 426580), (70, 402204), (77, 365640), (84, 335170), (88, 319935), (105, 268136), (110, 255948), (120, 234619), (121, 232680), (132, 213290), (140, 201102), (154, 182820), (165, 170632), (168, 167585), (210, 134068), (220, 127974), (231, 121880), (242, 116340), (264, 106645), (277, 101640), (280, 100551), (308, 91410), (330, 85316), (363, 77560), (385, 73128), (420, 67034), (440, 63987), (462, 60940), (484, 58170), (554, 50820), (605, 46536), (616, 45705), (660, 42658), (726, 38780), (770, 36564), (831, 33880), (840, 33517), (847, 33240), (924, 30470), (968, 29085), (1108, 25410), (1155, 24376), (1210, 23268), (1320, 21329), (1385, 20328), (1452, 19390), (1540, 18282), (1662, 16940), (1694, 16620), (1815, 15512), (1848, 15235), (1939, 14520), (2216, 12705), (2310, 12188), (2420, 11634), (2541, 11080), (2770, 10164), (2904, 9695), (3047, 9240), (3080, 9141), (3324, 8470), (3388, 8310), (3630, 7756), (3878, 7260), (4155, 6776), (4235, 6648), (4620, 6094), (4840, 5817), (5082, 5540)]