257032440

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{1619}}^1$

素因数の和:1656

約数の個数: 240

約数和(自身を含む): 1005582600

約数和(自身を除く): 748550160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 490, 504, 540, 567, 588, 630, 648, 735, 756, 810, 840, 882, 945, 980, 1080, 1134, 1176, 1260, 1323, 1470, 1512, 1619, 1620, 1764, 1890, 1960, 2205, 2268, 2520, 2646, 2835, 2940, 3238, 3240, 3528, 3780, 3969, 4410, 4536, 4857, 5292, 5670, 5880, 6476, 6615, 7560, 7938, 8095, 8820, 9714, 10584, 11333, 11340, 12952, 13230, 14571, 15876, 16190, 17640, 19428, 19845, 22666, 22680, 24285, 26460, 29142, 31752, 32380, 33999, 38856, 39690, 43713, 45332, 48570, 52920, 56665, 58284, 64760, 67998, 72855, 79331, 79380, 87426, 90664, 97140, 101997, 113330, 116568, 131139, 135996, 145710, 158662, 158760, 169995, 174852, 194280, 203994, 218565, 226660, 237993, 262278, 271992, 291420, 305991, 317324, 339990, 349704, 396655, 407988, 437130, 453320, 475986, 509985, 524556, 582840, 611982, 634648, 655695, 679980, 713979, 793310, 815976, 874260, 917973, 951972, 1019970, 1049112, 1189965, 1223964, 1311390, 1359960, 1427958, 1529955, 1586620, 1748520, 1835946, 1903944, 2039940, 2141937, 2379930, 2447928, 2622780, 2855916, 3059910, 3173240, 3569895, 3671892, 4079880, 4283874, 4589865, 4759860, 5245560, 5711832, 6119820, 6425811, 7139790, 7343784, 8567748, 9179730, 9519720, 10709685, 12239640, 12851622, 14279580, 17135496, 18359460, 21419370, 25703244, 28559160, 32129055, 36718920, 42838740, 51406488, 64258110, 85677480, 128516220, 257032440]

約数ペア:

[(1, 257032440), (2, 128516220), (3, 85677480), (4, 64258110), (5, 51406488), (6, 42838740), (7, 36718920), (8, 32129055), (9, 28559160), (10, 25703244), (12, 21419370), (14, 18359460), (15, 17135496), (18, 14279580), (20, 12851622), (21, 12239640), (24, 10709685), (27, 9519720), (28, 9179730), (30, 8567748), (35, 7343784), (36, 7139790), (40, 6425811), (42, 6119820), (45, 5711832), (49, 5245560), (54, 4759860), (56, 4589865), (60, 4283874), (63, 4079880), (70, 3671892), (72, 3569895), (81, 3173240), (84, 3059910), (90, 2855916), (98, 2622780), (105, 2447928), (108, 2379930), (120, 2141937), (126, 2039940), (135, 1903944), (140, 1835946), (147, 1748520), (162, 1586620), (168, 1529955), (180, 1427958), (189, 1359960), (196, 1311390), (210, 1223964), (216, 1189965), (245, 1049112), (252, 1019970), (270, 951972), (280, 917973), (294, 874260), (315, 815976), (324, 793310), (360, 713979), (378, 679980), (392, 655695), (405, 634648), (420, 611982), (441, 582840), (490, 524556), (504, 509985), (540, 475986), (567, 453320), (588, 437130), (630, 407988), (648, 396655), (735, 349704), (756, 339990), (810, 317324), (840, 305991), (882, 291420), (945, 271992), (980, 262278), (1080, 237993), (1134, 226660), (1176, 218565), (1260, 203994), (1323, 194280), (1470, 174852), (1512, 169995), (1619, 158760), (1620, 158662), (1764, 145710), (1890, 135996), (1960, 131139), (2205, 116568), (2268, 113330), (2520, 101997), (2646, 97140), (2835, 90664), (2940, 87426), (3238, 79380), (3240, 79331), (3528, 72855), (3780, 67998), (3969, 64760), (4410, 58284), (4536, 56665), (4857, 52920), (5292, 48570), (5670, 45332), (5880, 43713), (6476, 39690), (6615, 38856), (7560, 33999), (7938, 32380), (8095, 31752), (8820, 29142), (9714, 26460), (10584, 24285), (11333, 22680), (11340, 22666), (12952, 19845), (13230, 19428), (14571, 17640), (15876, 16190)]