257565360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2723

約数の個数: 160

約数和(自身を含む): 887943168

約数和(自身を除く): 630377808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 104, 120, 124, 130, 155, 156, 186, 195, 208, 240, 248, 260, 310, 312, 372, 390, 403, 465, 496, 520, 620, 624, 744, 780, 806, 930, 1040, 1209, 1240, 1488, 1560, 1612, 1860, 2015, 2418, 2480, 2663, 3120, 3224, 3720, 4030, 4836, 5326, 6045, 6448, 7440, 7989, 8060, 9672, 10652, 12090, 13315, 15978, 16120, 19344, 21304, 24180, 26630, 31956, 32240, 34619, 39945, 42608, 48360, 53260, 63912, 69238, 79890, 82553, 96720, 103857, 106520, 127824, 138476, 159780, 165106, 173095, 207714, 213040, 247659, 276952, 319560, 330212, 346190, 412765, 415428, 495318, 519285, 553904, 639120, 660424, 692380, 825530, 830856, 990636, 1038570, 1073189, 1238295, 1320848, 1384760, 1651060, 1661712, 1981272, 2077140, 2146378, 2476590, 2769520, 3219567, 3302120, 3962544, 4154280, 4292756, 4953180, 5365945, 6439134, 6604240, 8308560, 8585512, 9906360, 10731890, 12878268, 16097835, 17171024, 19812720, 21463780, 25756536, 32195670, 42927560, 51513072, 64391340, 85855120, 128782680, 257565360]

約数ペア:

[(1, 257565360), (2, 128782680), (3, 85855120), (4, 64391340), (5, 51513072), (6, 42927560), (8, 32195670), (10, 25756536), (12, 21463780), (13, 19812720), (15, 17171024), (16, 16097835), (20, 12878268), (24, 10731890), (26, 9906360), (30, 8585512), (31, 8308560), (39, 6604240), (40, 6439134), (48, 5365945), (52, 4953180), (60, 4292756), (62, 4154280), (65, 3962544), (78, 3302120), (80, 3219567), (93, 2769520), (104, 2476590), (120, 2146378), (124, 2077140), (130, 1981272), (155, 1661712), (156, 1651060), (186, 1384760), (195, 1320848), (208, 1238295), (240, 1073189), (248, 1038570), (260, 990636), (310, 830856), (312, 825530), (372, 692380), (390, 660424), (403, 639120), (465, 553904), (496, 519285), (520, 495318), (620, 415428), (624, 412765), (744, 346190), (780, 330212), (806, 319560), (930, 276952), (1040, 247659), (1209, 213040), (1240, 207714), (1488, 173095), (1560, 165106), (1612, 159780), (1860, 138476), (2015, 127824), (2418, 106520), (2480, 103857), (2663, 96720), (3120, 82553), (3224, 79890), (3720, 69238), (4030, 63912), (4836, 53260), (5326, 48360), (6045, 42608), (6448, 39945), (7440, 34619), (7989, 32240), (8060, 31956), (9672, 26630), (10652, 24180), (12090, 21304), (13315, 19344), (15978, 16120)]