2042578720

素因数分解:

$2^5\times 5^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:465

約数の個数: 240

約数和(自身を含む): 6077385720

約数和(自身を除く): 4034807000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 343, 364, 392, 409, 416, 455, 490, 520, 560, 637, 686, 728, 784, 818, 910, 980, 1040, 1120, 1274, 1372, 1456, 1568, 1636, 1715, 1820, 1960, 2045, 2080, 2401, 2548, 2744, 2863, 2912, 3185, 3272, 3430, 3640, 3920, 4090, 4459, 4802, 5096, 5317, 5488, 5726, 6370, 6544, 6860, 7280, 7840, 8180, 8918, 9604, 10192, 10634, 10976, 11452, 12005, 12740, 13088, 13720, 14315, 14560, 16360, 17836, 19208, 20041, 20384, 21268, 22295, 22904, 24010, 25480, 26585, 27440, 28630, 31213, 32720, 35672, 37219, 38416, 40082, 42536, 44590, 45808, 48020, 50960, 53170, 54880, 57260, 62426, 65440, 71344, 74438, 76832, 80164, 85072, 89180, 91616, 96040, 100205, 101920, 106340, 114520, 124852, 140287, 142688, 148876, 156065, 160328, 170144, 178360, 186095, 192080, 200410, 212680, 229040, 249704, 260533, 280574, 297752, 312130, 320656, 356720, 372190, 384160, 400820, 425360, 458080, 499408, 521066, 561148, 595504, 624260, 641312, 701435, 713440, 744380, 801640, 850720, 982009, 998816, 1042132, 1122296, 1191008, 1248520, 1302665, 1402870, 1488760, 1603280, 1823731, 1964018, 2084264, 2244592, 2497040, 2605330, 2805740, 2977520, 3206560, 3647462, 3928036, 4168528, 4489184, 4910045, 4994080, 5210660, 5611480, 5955040, 7294924, 7856072, 8337056, 9118655, 9820090, 10421320, 11222960, 12766117, 14589848, 15712144, 18237310, 19640180, 20842640, 22445920, 25532234, 29179696, 31424288, 36474620, 39280360, 41685280, 51064468, 58359392, 63830585, 72949240, 78560720, 102128936, 127661170, 145898480, 157121440, 204257872, 255322340, 291796960, 408515744, 510644680, 1021289360, 2042578720]

約数ペア:

[(1, 2042578720), (2, 1021289360), (4, 510644680), (5, 408515744), (7, 291796960), (8, 255322340), (10, 204257872), (13, 157121440), (14, 145898480), (16, 127661170), (20, 102128936), (26, 78560720), (28, 72949240), (32, 63830585), (35, 58359392), (40, 51064468), (49, 41685280), (52, 39280360), (56, 36474620), (65, 31424288), (70, 29179696), (80, 25532234), (91, 22445920), (98, 20842640), (104, 19640180), (112, 18237310), (130, 15712144), (140, 14589848), (160, 12766117), (182, 11222960), (196, 10421320), (208, 9820090), (224, 9118655), (245, 8337056), (260, 7856072), (280, 7294924), (343, 5955040), (364, 5611480), (392, 5210660), (409, 4994080), (416, 4910045), (455, 4489184), (490, 4168528), (520, 3928036), (560, 3647462), (637, 3206560), (686, 2977520), (728, 2805740), (784, 2605330), (818, 2497040), (910, 2244592), (980, 2084264), (1040, 1964018), (1120, 1823731), (1274, 1603280), (1372, 1488760), (1456, 1402870), (1568, 1302665), (1636, 1248520), (1715, 1191008), (1820, 1122296), (1960, 1042132), (2045, 998816), (2080, 982009), (2401, 850720), (2548, 801640), (2744, 744380), (2863, 713440), (2912, 701435), (3185, 641312), (3272, 624260), (3430, 595504), (3640, 561148), (3920, 521066), (4090, 499408), (4459, 458080), (4802, 425360), (5096, 400820), (5317, 384160), (5488, 372190), (5726, 356720), (6370, 320656), (6544, 312130), (6860, 297752), (7280, 280574), (7840, 260533), (8180, 249704), (8918, 229040), (9604, 212680), (10192, 200410), (10634, 192080), (10976, 186095), (11452, 178360), (12005, 170144), (12740, 160328), (13088, 156065), (13720, 148876), (14315, 142688), (14560, 140287), (16360, 124852), (17836, 114520), (19208, 106340), (20041, 101920), (20384, 100205), (21268, 96040), (22295, 91616), (22904, 89180), (24010, 85072), (25480, 80164), (26585, 76832), (27440, 74438), (28630, 71344), (31213, 65440), (32720, 62426), (35672, 57260), (37219, 54880), (38416, 53170), (40082, 50960), (42536, 48020), (44590, 45808)]