64879920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{613}}^1$

素因数の和:649

約数の個数: 240

約数和(自身を含む): 260385120

約数和(自身を除く): 195505200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 613, 630, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1226, 1260, 1323, 1470, 1512, 1680, 1764, 1839, 1890, 1960, 2160, 2205, 2352, 2452, 2520, 2646, 2940, 3024, 3065, 3528, 3678, 3780, 3920, 4291, 4410, 4904, 5040, 5292, 5517, 5880, 6130, 6615, 7056, 7356, 7560, 8582, 8820, 9195, 9808, 10584, 11034, 11760, 12260, 12873, 13230, 14712, 15120, 16551, 17164, 17640, 18390, 21168, 21455, 22068, 24520, 25746, 26460, 27585, 29424, 30037, 33102, 34328, 35280, 36780, 38619, 42910, 44136, 49040, 51492, 52920, 55170, 60074, 64365, 66204, 68656, 73560, 77238, 82755, 85820, 88272, 90111, 102984, 105840, 110340, 115857, 120148, 128730, 132408, 147120, 150185, 154476, 165510, 171640, 180222, 193095, 205968, 220680, 231714, 240296, 257460, 264816, 270333, 300370, 308952, 331020, 343280, 360444, 386190, 441360, 450555, 463428, 480592, 514920, 540666, 579285, 600740, 617904, 662040, 720888, 772380, 810999, 901110, 926856, 1029840, 1081332, 1158570, 1201480, 1324080, 1351665, 1441776, 1544760, 1621998, 1802220, 1853712, 2162664, 2317140, 2402960, 2703330, 3089520, 3243996, 3604440, 4054995, 4325328, 4634280, 5406660, 6487992, 7208880, 8109990, 9268560, 10813320, 12975984, 16219980, 21626640, 32439960, 64879920]

約数ペア:

[(1, 64879920), (2, 32439960), (3, 21626640), (4, 16219980), (5, 12975984), (6, 10813320), (7, 9268560), (8, 8109990), (9, 7208880), (10, 6487992), (12, 5406660), (14, 4634280), (15, 4325328), (16, 4054995), (18, 3604440), (20, 3243996), (21, 3089520), (24, 2703330), (27, 2402960), (28, 2317140), (30, 2162664), (35, 1853712), (36, 1802220), (40, 1621998), (42, 1544760), (45, 1441776), (48, 1351665), (49, 1324080), (54, 1201480), (56, 1158570), (60, 1081332), (63, 1029840), (70, 926856), (72, 901110), (80, 810999), (84, 772380), (90, 720888), (98, 662040), (105, 617904), (108, 600740), (112, 579285), (120, 540666), (126, 514920), (135, 480592), (140, 463428), (144, 450555), (147, 441360), (168, 386190), (180, 360444), (189, 343280), (196, 331020), (210, 308952), (216, 300370), (240, 270333), (245, 264816), (252, 257460), (270, 240296), (280, 231714), (294, 220680), (315, 205968), (336, 193095), (360, 180222), (378, 171640), (392, 165510), (420, 154476), (432, 150185), (441, 147120), (490, 132408), (504, 128730), (540, 120148), (560, 115857), (588, 110340), (613, 105840), (630, 102984), (720, 90111), (735, 88272), (756, 85820), (784, 82755), (840, 77238), (882, 73560), (945, 68656), (980, 66204), (1008, 64365), (1080, 60074), (1176, 55170), (1226, 52920), (1260, 51492), (1323, 49040), (1470, 44136), (1512, 42910), (1680, 38619), (1764, 36780), (1839, 35280), (1890, 34328), (1960, 33102), (2160, 30037), (2205, 29424), (2352, 27585), (2452, 26460), (2520, 25746), (2646, 24520), (2940, 22068), (3024, 21455), (3065, 21168), (3528, 18390), (3678, 17640), (3780, 17164), (3920, 16551), (4291, 15120), (4410, 14712), (4904, 13230), (5040, 12873), (5292, 12260), (5517, 11760), (5880, 11034), (6130, 10584), (6615, 9808), (7056, 9195), (7356, 8820), (7560, 8582)]