257699280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1823}}^1$

素因数の和:1889

約数の個数: 160

約数和(自身を含む): 868515840

約数和(自身を除く): 610816560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 496, 570, 589, 620, 744, 760, 912, 930, 1140, 1178, 1240, 1488, 1520, 1767, 1823, 1860, 2280, 2356, 2480, 2945, 3534, 3646, 3720, 4560, 4712, 5469, 5890, 7068, 7292, 7440, 8835, 9115, 9424, 10938, 11780, 14136, 14584, 17670, 18230, 21876, 23560, 27345, 28272, 29168, 34637, 35340, 36460, 43752, 47120, 54690, 56513, 69274, 70680, 72920, 87504, 103911, 109380, 113026, 138548, 141360, 145840, 169539, 173185, 207822, 218760, 226052, 277096, 282565, 339078, 346370, 415644, 437520, 452104, 519555, 554192, 565130, 678156, 692740, 831288, 847695, 904208, 1039110, 1073747, 1130260, 1356312, 1385480, 1662576, 1695390, 2078220, 2147494, 2260520, 2712624, 2770960, 3221241, 3390780, 4156440, 4294988, 4521040, 5368735, 6442482, 6781560, 8312880, 8589976, 10737470, 12884964, 13563120, 16106205, 17179952, 21474940, 25769928, 32212410, 42949880, 51539856, 64424820, 85899760, 128849640, 257699280]

約数ペア:

[(1, 257699280), (2, 128849640), (3, 85899760), (4, 64424820), (5, 51539856), (6, 42949880), (8, 32212410), (10, 25769928), (12, 21474940), (15, 17179952), (16, 16106205), (19, 13563120), (20, 12884964), (24, 10737470), (30, 8589976), (31, 8312880), (38, 6781560), (40, 6442482), (48, 5368735), (57, 4521040), (60, 4294988), (62, 4156440), (76, 3390780), (80, 3221241), (93, 2770960), (95, 2712624), (114, 2260520), (120, 2147494), (124, 2078220), (152, 1695390), (155, 1662576), (186, 1385480), (190, 1356312), (228, 1130260), (240, 1073747), (248, 1039110), (285, 904208), (304, 847695), (310, 831288), (372, 692740), (380, 678156), (456, 565130), (465, 554192), (496, 519555), (570, 452104), (589, 437520), (620, 415644), (744, 346370), (760, 339078), (912, 282565), (930, 277096), (1140, 226052), (1178, 218760), (1240, 207822), (1488, 173185), (1520, 169539), (1767, 145840), (1823, 141360), (1860, 138548), (2280, 113026), (2356, 109380), (2480, 103911), (2945, 87504), (3534, 72920), (3646, 70680), (3720, 69274), (4560, 56513), (4712, 54690), (5469, 47120), (5890, 43752), (7068, 36460), (7292, 35340), (7440, 34637), (8835, 29168), (9115, 28272), (9424, 27345), (10938, 23560), (11780, 21876), (14136, 18230), (14584, 17670)]