1980368801280

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{1321}}^1$

素因数の和:1440

約数の個数: 960

約数和(自身を含む): 7538635621440

約数和(自身を除く): 5558266820160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 41, 45, 46, 48, 54, 60, 64, 69, 72, 80, 82, 90, 92, 96, 108, 115, 120, 123, 128, 135, 138, 144, 160, 164, 180, 184, 192, 205, 207, 216, 230, 240, 246, 256, 270, 276, 288, 320, 328, 345, 360, 368, 369, 384, 410, 414, 432, 460, 480, 492, 512, 529, 540, 552, 576, 615, 621, 640, 656, 690, 720, 736, 738, 768, 820, 828, 864, 920, 943, 960, 984, 1035, 1058, 1080, 1104, 1107, 1152, 1230, 1242, 1280, 1312, 1321, 1380, 1440, 1472, 1476, 1536, 1587, 1640, 1656, 1728, 1840, 1845, 1886, 1920, 1968, 2070, 2116, 2160, 2208, 2214, 2304, 2460, 2484, 2560, 2624, 2642, 2645, 2760, 2829, 2880, 2944, 2952, 3105, 3174, 3280, 3312, 3456, 3680, 3690, 3772, 3840, 3936, 3963, 4140, 4232, 4320, 4416, 4428, 4608, 4715, 4761, 4920, 4968, 5248, 5284, 5290, 5520, 5535, 5658, 5760, 5888, 5904, 6210, 6348, 6560, 6605, 6624, 6912, 7360, 7380, 7544, 7680, 7872, 7926, 7935, 8280, 8464, 8487, 8640, 8832, 8856, 9430, 9522, 9840, 9936, 10496, 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約数ペア:

[(1, 1980368801280), (2, 990184400640), (3, 660122933760), (4, 495092200320), (5, 396073760256), (6, 330061466880), (8, 247546100160), (9, 220040977920), (10, 198036880128), (12, 165030733440), (15, 132024586752), (16, 123773050080), (18, 110020488960), (20, 99018440064), (23, 86102991360), (24, 82515366720), (27, 73346992640), (30, 66012293376), (32, 61886525040), (36, 55010244480), (40, 49509220032), (41, 48301678080), (45, 44008195584), (46, 43051495680), (48, 41257683360), (54, 36673496320), (60, 33006146688), (64, 30943262520), (69, 28700997120), (72, 27505122240), (80, 24754610016), (82, 24150839040), (90, 22004097792), (92, 21525747840), (96, 20628841680), (108, 18336748160), (115, 17220598272), (120, 16503073344), (123, 16100559360), (128, 15471631260), (135, 14669398528), (138, 14350498560), (144, 13752561120), (160, 12377305008), (164, 12075419520), (180, 11002048896), (184, 10762873920), (192, 10314420840), (205, 9660335616), (207, 9566999040), (216, 9168374080), (230, 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