20619720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:196

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 54859320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 41, 44, 45, 55, 60, 66, 72, 82, 88, 90, 99, 110, 120, 123, 127, 132, 164, 165, 180, 198, 205, 220, 246, 254, 264, 328, 330, 360, 369, 381, 396, 410, 440, 451, 492, 495, 508, 615, 635, 660, 738, 762, 792, 820, 902, 984, 990, 1016, 1143, 1230, 1270, 1320, 1353, 1397, 1476, 1524, 1640, 1804, 1845, 1905, 1980, 2255, 2286, 2460, 2540, 2706, 2794, 2952, 3048, 3608, 3690, 3810, 3960, 4059, 4191, 4510, 4572, 4920, 5080, 5207, 5412, 5588, 5715, 6765, 6985, 7380, 7620, 8118, 8382, 9020, 9144, 10414, 10824, 11176, 11430, 12573, 13530, 13970, 14760, 15240, 15621, 16236, 16764, 18040, 20295, 20828, 20955, 22860, 25146, 26035, 27060, 27940, 31242, 32472, 33528, 40590, 41656, 41910, 45720, 46863, 50292, 52070, 54120, 55880, 57277, 62484, 62865, 78105, 81180, 83820, 93726, 100584, 104140, 114554, 124968, 125730, 156210, 162360, 167640, 171831, 187452, 208280, 229108, 234315, 251460, 286385, 312420, 343662, 374904, 458216, 468630, 502920, 515493, 572770, 624840, 687324, 859155, 937260, 1030986, 1145540, 1374648, 1718310, 1874520, 2061972, 2291080, 2577465, 3436620, 4123944, 5154930, 6873240, 10309860, 20619720]

約数ペア:

[(1, 20619720), (2, 10309860), (3, 6873240), (4, 5154930), (5, 4123944), (6, 3436620), (8, 2577465), (9, 2291080), (10, 2061972), (11, 1874520), (12, 1718310), (15, 1374648), (18, 1145540), (20, 1030986), (22, 937260), (24, 859155), (30, 687324), (33, 624840), (36, 572770), (40, 515493), (41, 502920), (44, 468630), (45, 458216), (55, 374904), (60, 343662), (66, 312420), (72, 286385), (82, 251460), (88, 234315), (90, 229108), (99, 208280), (110, 187452), (120, 171831), (123, 167640), (127, 162360), (132, 156210), (164, 125730), (165, 124968), (180, 114554), (198, 104140), (205, 100584), (220, 93726), (246, 83820), (254, 81180), (264, 78105), (328, 62865), (330, 62484), (360, 57277), (369, 55880), (381, 54120), (396, 52070), (410, 50292), (440, 46863), (451, 45720), (492, 41910), (495, 41656), (508, 40590), (615, 33528), (635, 32472), (660, 31242), (738, 27940), (762, 27060), (792, 26035), (820, 25146), (902, 22860), (984, 20955), (990, 20828), (1016, 20295), (1143, 18040), (1230, 16764), (1270, 16236), (1320, 15621), (1353, 15240), (1397, 14760), (1476, 13970), (1524, 13530), (1640, 12573), (1804, 11430), (1845, 11176), (1905, 10824), (1980, 10414), (2255, 9144), (2286, 9020), (2460, 8382), (2540, 8118), (2706, 7620), (2794, 7380), (2952, 6985), (3048, 6765), (3608, 5715), (3690, 5588), (3810, 5412), (3960, 5207), (4059, 5080), (4191, 4920), (4510, 4572)]