28490880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 256

約数和(自身を含む): 105753600

約数和(自身を除く): 77262720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 32, 33, 38, 40, 44, 48, 55, 57, 60, 64, 66, 71, 76, 80, 88, 95, 96, 110, 114, 120, 128, 132, 142, 152, 160, 165, 176, 190, 192, 209, 213, 220, 228, 240, 264, 284, 285, 304, 320, 330, 352, 355, 380, 384, 418, 426, 440, 456, 480, 528, 568, 570, 608, 627, 640, 660, 704, 710, 760, 781, 836, 852, 880, 912, 960, 1045, 1056, 1065, 1136, 1140, 1216, 1254, 1320, 1349, 1408, 1420, 1520, 1562, 1672, 1704, 1760, 1824, 1920, 2090, 2112, 2130, 2272, 2280, 2343, 2432, 2508, 2640, 2698, 2840, 3040, 3124, 3135, 3344, 3408, 3520, 3648, 3905, 4047, 4180, 4224, 4260, 4544, 4560, 4686, 5016, 5280, 5396, 5680, 6080, 6248, 6270, 6688, 6745, 6816, 7040, 7296, 7810, 8094, 8360, 8520, 9088, 9120, 9372, 10032, 10560, 10792, 11360, 11715, 12160, 12496, 12540, 13376, 13490, 13632, 14839, 15620, 16188, 16720, 17040, 18240, 18744, 20064, 20235, 21120, 21584, 22720, 23430, 24992, 25080, 26752, 26980, 27264, 29678, 31240, 32376, 33440, 34080, 36480, 37488, 40128, 40470, 43168, 44517, 45440, 46860, 49984, 50160, 53960, 59356, 62480, 64752, 66880, 68160, 74195, 74976, 80256, 80940, 86336, 89034, 93720, 99968, 100320, 107920, 118712, 124960, 129504, 133760, 136320, 148390, 149952, 161880, 172672, 178068, 187440, 200640, 215840, 222585, 237424, 249920, 259008, 296780, 299904, 323760, 356136, 374880, 401280, 431680, 445170, 474848, 499840, 518016, 593560, 647520, 712272, 749760, 863360, 890340, 949696, 1187120, 1295040, 1424544, 1499520, 1780680, 1899392, 2374240, 2590080, 2849088, 3561360, 4748480, 5698176, 7122720, 9496960, 14245440, 28490880]

約数ペア:

[(1, 28490880), (2, 14245440), (3, 9496960), (4, 7122720), (5, 5698176), (6, 4748480), (8, 3561360), (10, 2849088), (11, 2590080), (12, 2374240), (15, 1899392), (16, 1780680), (19, 1499520), (20, 1424544), (22, 1295040), (24, 1187120), (30, 949696), (32, 890340), (33, 863360), (38, 749760), (40, 712272), (44, 647520), (48, 593560), (55, 518016), (57, 499840), (60, 474848), (64, 445170), (66, 431680), (71, 401280), (76, 374880), (80, 356136), (88, 323760), (95, 299904), (96, 296780), (110, 259008), (114, 249920), (120, 237424), (128, 222585), (132, 215840), (142, 200640), (152, 187440), (160, 178068), (165, 172672), (176, 161880), (190, 149952), (192, 148390), (209, 136320), (213, 133760), (220, 129504), (228, 124960), (240, 118712), (264, 107920), (284, 100320), (285, 99968), (304, 93720), (320, 89034), (330, 86336), (352, 80940), (355, 80256), (380, 74976), (384, 74195), (418, 68160), (426, 66880), (440, 64752), (456, 62480), (480, 59356), (528, 53960), (568, 50160), (570, 49984), (608, 46860), (627, 45440), (640, 44517), (660, 43168), (704, 40470), (710, 40128), (760, 37488), (781, 36480), (836, 34080), (852, 33440), (880, 32376), (912, 31240), (960, 29678), (1045, 27264), (1056, 26980), (1065, 26752), (1136, 25080), (1140, 24992), (1216, 23430), (1254, 22720), (1320, 21584), (1349, 21120), (1408, 20235), (1420, 20064), (1520, 18744), (1562, 18240), (1672, 17040), (1704, 16720), (1760, 16188), (1824, 15620), (1920, 14839), (2090, 13632), (2112, 13490), (2130, 13376), (2272, 12540), (2280, 12496), (2343, 12160), (2432, 11715), (2508, 11360), (2640, 10792), (2698, 10560), (2840, 10032), (3040, 9372), (3124, 9120), (3135, 9088), (3344, 8520), (3408, 8360), (3520, 8094), (3648, 7810), (3905, 7296), (4047, 7040), (4180, 6816), (4224, 6745), (4260, 6688), (4544, 6270), (4560, 6248), (4686, 6080), (5016, 5680), (5280, 5396)]