19974240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:142

約数の個数: 288

約数和(自身を含む): 80904096

約数和(自身を除く): 60929856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 32, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 65, 66, 72, 78, 80, 88, 90, 96, 97, 99, 104, 110, 117, 120, 130, 132, 143, 144, 156, 160, 165, 176, 180, 194, 195, 198, 208, 220, 234, 240, 260, 264, 286, 288, 291, 312, 330, 352, 360, 388, 390, 396, 416, 429, 440, 468, 480, 485, 495, 520, 528, 572, 582, 585, 624, 660, 715, 720, 776, 780, 792, 858, 873, 880, 936, 970, 990, 1040, 1056, 1067, 1144, 1164, 1170, 1248, 1261, 1287, 1320, 1430, 1440, 1455, 1552, 1560, 1584, 1716, 1746, 1760, 1872, 1940, 1980, 2080, 2134, 2145, 2288, 2328, 2340, 2522, 2574, 2640, 2860, 2910, 3104, 3120, 3168, 3201, 3432, 3492, 3744, 3783, 3880, 3960, 4268, 4290, 4365, 4576, 4656, 4680, 5044, 5148, 5280, 5335, 5720, 5820, 6240, 6305, 6402, 6435, 6864, 6984, 7566, 7760, 7920, 8536, 8580, 8730, 9312, 9360, 9603, 10088, 10296, 10670, 11349, 11440, 11640, 12610, 12804, 12870, 13728, 13871, 13968, 15132, 15520, 15840, 16005, 17072, 17160, 17460, 18720, 18915, 19206, 20176, 20592, 21340, 22698, 22880, 23280, 25220, 25608, 25740, 27742, 27936, 30264, 32010, 34144, 34320, 34920, 37830, 38412, 40352, 41184, 41613, 42680, 45396, 46560, 48015, 50440, 51216, 51480, 55484, 56745, 60528, 64020, 68640, 69355, 69840, 75660, 76824, 83226, 85360, 90792, 96030, 100880, 102432, 102960, 110968, 113490, 121056, 124839, 128040, 138710, 139680, 151320, 153648, 166452, 170720, 181584, 192060, 201760, 205920, 208065, 221936, 226980, 249678, 256080, 277420, 302640, 307296, 332904, 363168, 384120, 416130, 443872, 453960, 499356, 512160, 554840, 605280, 624195, 665808, 768240, 832260, 907920, 998712, 1109680, 1248390, 1331616, 1536480, 1664520, 1815840, 1997424, 2219360, 2496780, 3329040, 3994848, 4993560, 6658080, 9987120, 19974240]

約数ペア:

[(1, 19974240), (2, 9987120), (3, 6658080), (4, 4993560), (5, 3994848), (6, 3329040), (8, 2496780), (9, 2219360), (10, 1997424), (11, 1815840), (12, 1664520), (13, 1536480), (15, 1331616), (16, 1248390), (18, 1109680), (20, 998712), (22, 907920), (24, 832260), (26, 768240), (30, 665808), (32, 624195), (33, 605280), (36, 554840), (39, 512160), (40, 499356), (44, 453960), (45, 443872), (48, 416130), (52, 384120), (55, 363168), (60, 332904), (65, 307296), (66, 302640), (72, 277420), (78, 256080), (80, 249678), (88, 226980), (90, 221936), (96, 208065), (97, 205920), (99, 201760), (104, 192060), (110, 181584), (117, 170720), (120, 166452), (130, 153648), (132, 151320), (143, 139680), (144, 138710), (156, 128040), (160, 124839), (165, 121056), (176, 113490), (180, 110968), (194, 102960), (195, 102432), (198, 100880), (208, 96030), (220, 90792), (234, 85360), (240, 83226), (260, 76824), (264, 75660), (286, 69840), (288, 69355), (291, 68640), (312, 64020), (330, 60528), (352, 56745), (360, 55484), (388, 51480), (390, 51216), (396, 50440), (416, 48015), (429, 46560), (440, 45396), (468, 42680), (480, 41613), (485, 41184), (495, 40352), (520, 38412), (528, 37830), (572, 34920), (582, 34320), (585, 34144), (624, 32010), (660, 30264), (715, 27936), (720, 27742), (776, 25740), (780, 25608), (792, 25220), (858, 23280), (873, 22880), (880, 22698), (936, 21340), (970, 20592), (990, 20176), (1040, 19206), (1056, 18915), (1067, 18720), (1144, 17460), (1164, 17160), (1170, 17072), (1248, 16005), (1261, 15840), (1287, 15520), (1320, 15132), (1430, 13968), (1440, 13871), (1455, 13728), (1552, 12870), (1560, 12804), (1584, 12610), (1716, 11640), (1746, 11440), (1760, 11349), (1872, 10670), (1940, 10296), (1980, 10088), (2080, 9603), (2134, 9360), (2145, 9312), (2288, 8730), (2328, 8580), (2340, 8536), (2522, 7920), (2574, 7760), (2640, 7566), (2860, 6984), (2910, 6864), (3104, 6435), (3120, 6402), (3168, 6305), (3201, 6240), (3432, 5820), (3492, 5720), (3744, 5335), (3783, 5280), (3880, 5148), (3960, 5044), (4268, 4680), (4290, 4656), (4365, 4576)]