1272287120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:174

約数の個数: 240

約数和(自身を含む): 3516649920

約数和(自身を除く): 2244362800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 67, 76, 80, 95, 104, 124, 130, 134, 152, 155, 190, 208, 247, 248, 260, 268, 304, 310, 335, 380, 403, 494, 496, 520, 536, 589, 620, 670, 760, 806, 871, 961, 988, 1040, 1072, 1178, 1235, 1240, 1273, 1340, 1520, 1612, 1742, 1922, 1976, 2015, 2077, 2356, 2470, 2480, 2546, 2680, 2945, 3224, 3484, 3844, 3952, 4030, 4154, 4355, 4712, 4805, 4940, 5092, 5360, 5890, 6365, 6448, 6968, 7657, 7688, 8060, 8308, 8710, 9424, 9610, 9880, 10184, 10385, 11780, 12493, 12730, 13936, 15314, 15376, 16120, 16549, 16616, 17420, 18259, 19220, 19760, 20368, 20770, 23560, 24986, 25460, 27001, 30628, 32240, 33098, 33232, 34840, 36518, 38285, 38440, 39463, 41540, 47120, 49972, 50920, 54002, 61256, 62465, 64387, 66196, 69680, 73036, 76570, 76880, 78926, 82745, 83080, 91295, 99944, 101840, 108004, 122512, 124930, 128774, 132392, 135005, 146072, 153140, 157852, 165490, 166160, 182590, 197315, 199888, 216008, 237367, 249860, 257548, 264784, 270010, 292144, 306280, 315704, 321935, 330980, 365180, 394630, 432016, 474734, 499720, 513019, 515096, 540020, 612560, 631408, 643870, 661960, 730360, 789260, 837031, 949468, 999440, 1026038, 1030192, 1080040, 1186835, 1223353, 1287740, 1323920, 1460720, 1578520, 1674062, 1898936, 2052076, 2160080, 2373670, 2446706, 2565095, 2575480, 3157040, 3348124, 3797872, 4104152, 4185155, 4747340, 4893412, 5130190, 5150960, 6116765, 6696248, 8208304, 8370310, 9494680, 9786824, 10260380, 12233530, 13392496, 15903589, 16740620, 18989360, 19573648, 20520760, 24467060, 31807178, 33481240, 41041520, 48934120, 63614356, 66962480, 79517945, 97868240, 127228712, 159035890, 254457424, 318071780, 636143560, 1272287120]

約数ペア:

[(1, 1272287120), (2, 636143560), (4, 318071780), (5, 254457424), (8, 159035890), (10, 127228712), (13, 97868240), (16, 79517945), (19, 66962480), (20, 63614356), (26, 48934120), (31, 41041520), (38, 33481240), (40, 31807178), (52, 24467060), (62, 20520760), (65, 19573648), (67, 18989360), (76, 16740620), (80, 15903589), (95, 13392496), (104, 12233530), (124, 10260380), (130, 9786824), (134, 9494680), (152, 8370310), (155, 8208304), (190, 6696248), (208, 6116765), (247, 5150960), (248, 5130190), (260, 4893412), (268, 4747340), (304, 4185155), (310, 4104152), (335, 3797872), (380, 3348124), (403, 3157040), (494, 2575480), (496, 2565095), (520, 2446706), (536, 2373670), (589, 2160080), (620, 2052076), (670, 1898936), (760, 1674062), (806, 1578520), (871, 1460720), (961, 1323920), (988, 1287740), (1040, 1223353), (1072, 1186835), (1178, 1080040), (1235, 1030192), (1240, 1026038), (1273, 999440), (1340, 949468), (1520, 837031), (1612, 789260), (1742, 730360), (1922, 661960), (1976, 643870), (2015, 631408), (2077, 612560), (2356, 540020), (2470, 515096), (2480, 513019), (2546, 499720), (2680, 474734), (2945, 432016), (3224, 394630), (3484, 365180), (3844, 330980), (3952, 321935), (4030, 315704), (4154, 306280), (4355, 292144), (4712, 270010), (4805, 264784), (4940, 257548), (5092, 249860), (5360, 237367), (5890, 216008), (6365, 199888), (6448, 197315), (6968, 182590), (7657, 166160), (7688, 165490), (8060, 157852), (8308, 153140), (8710, 146072), (9424, 135005), (9610, 132392), (9880, 128774), (10184, 124930), (10385, 122512), (11780, 108004), (12493, 101840), (12730, 99944), (13936, 91295), (15314, 83080), (15376, 82745), (16120, 78926), (16549, 76880), (16616, 76570), (17420, 73036), (18259, 69680), (19220, 66196), (19760, 64387), (20368, 62465), (20770, 61256), (23560, 54002), (24986, 50920), (25460, 49972), (27001, 47120), (30628, 41540), (32240, 39463), (33098, 38440), (33232, 38285), (34840, 36518)]