640077120

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3221}}^1$

素因数の和:3270

約数の個数: 224

約数和(自身を含む): 2356957440

約数和(自身を除く): 1716880320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 64, 69, 72, 80, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 180, 184, 192, 207, 216, 230, 240, 270, 276, 288, 320, 345, 360, 368, 414, 432, 460, 480, 540, 552, 576, 621, 690, 720, 736, 828, 864, 920, 960, 1035, 1080, 1104, 1242, 1380, 1440, 1472, 1656, 1728, 1840, 2070, 2160, 2208, 2484, 2760, 2880, 3105, 3221, 3312, 3680, 4140, 4320, 4416, 4968, 5520, 6210, 6442, 6624, 7360, 8280, 8640, 9663, 9936, 11040, 12420, 12884, 13248, 16105, 16560, 19326, 19872, 22080, 24840, 25768, 28989, 32210, 33120, 38652, 39744, 48315, 49680, 51536, 57978, 64420, 66240, 74083, 77304, 86967, 96630, 99360, 103072, 115956, 128840, 144945, 148166, 154608, 173934, 193260, 198720, 206144, 222249, 231912, 257680, 289890, 296332, 309216, 347868, 370415, 386520, 434835, 444498, 463824, 515360, 579780, 592664, 618432, 666747, 695736, 740830, 773040, 869670, 888996, 927648, 1030720, 1111245, 1159560, 1185328, 1333494, 1391472, 1481660, 1546080, 1739340, 1777992, 1855296, 2000241, 2222490, 2319120, 2370656, 2666988, 2782944, 2963320, 3092160, 3333735, 3478680, 3555984, 4000482, 4444980, 4638240, 4741312, 5333976, 5565888, 5926640, 6667470, 6957360, 7111968, 8000964, 8889960, 9276480, 10001205, 10667952, 11853280, 13334940, 13914720, 14223936, 16001928, 17779920, 20002410, 21335904, 23706560, 26669880, 27829440, 32003856, 35559840, 40004820, 42671808, 53339760, 64007712, 71119680, 80009640, 106679520, 128015424, 160019280, 213359040, 320038560, 640077120]

約数ペア:

[(1, 640077120), (2, 320038560), (3, 213359040), (4, 160019280), (5, 128015424), (6, 106679520), (8, 80009640), (9, 71119680), (10, 64007712), (12, 53339760), (15, 42671808), (16, 40004820), (18, 35559840), (20, 32003856), (23, 27829440), (24, 26669880), (27, 23706560), (30, 21335904), (32, 20002410), (36, 17779920), (40, 16001928), (45, 14223936), (46, 13914720), (48, 13334940), (54, 11853280), (60, 10667952), (64, 10001205), (69, 9276480), (72, 8889960), (80, 8000964), (90, 7111968), (92, 6957360), (96, 6667470), (108, 5926640), (115, 5565888), (120, 5333976), (135, 4741312), (138, 4638240), (144, 4444980), (160, 4000482), (180, 3555984), (184, 3478680), (192, 3333735), (207, 3092160), (216, 2963320), (230, 2782944), (240, 2666988), (270, 2370656), (276, 2319120), (288, 2222490), (320, 2000241), (345, 1855296), (360, 1777992), (368, 1739340), (414, 1546080), (432, 1481660), (460, 1391472), (480, 1333494), (540, 1185328), (552, 1159560), (576, 1111245), (621, 1030720), (690, 927648), (720, 888996), (736, 869670), (828, 773040), (864, 740830), (920, 695736), (960, 666747), (1035, 618432), (1080, 592664), (1104, 579780), (1242, 515360), (1380, 463824), (1440, 444498), (1472, 434835), (1656, 386520), (1728, 370415), (1840, 347868), (2070, 309216), (2160, 296332), (2208, 289890), (2484, 257680), (2760, 231912), (2880, 222249), (3105, 206144), (3221, 198720), (3312, 193260), (3680, 173934), (4140, 154608), (4320, 148166), (4416, 144945), (4968, 128840), (5520, 115956), (6210, 103072), (6442, 99360), (6624, 96630), (7360, 86967), (8280, 77304), (8640, 74083), (9663, 66240), (9936, 64420), (11040, 57978), (12420, 51536), (12884, 49680), (13248, 48315), (16105, 39744), (16560, 38652), (19326, 33120), (19872, 32210), (22080, 28989), (24840, 25768)]