20650320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 240

約数和(自身を含む): 76602240

約数和(自身を除く): 55951920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 29, 30, 36, 40, 43, 45, 46, 48, 58, 60, 69, 72, 80, 86, 87, 90, 92, 115, 116, 120, 129, 138, 144, 145, 172, 174, 180, 184, 207, 215, 230, 232, 240, 258, 261, 276, 290, 344, 345, 348, 360, 368, 387, 414, 430, 435, 460, 464, 516, 522, 552, 580, 645, 667, 688, 690, 696, 720, 774, 828, 860, 870, 920, 989, 1032, 1035, 1044, 1104, 1160, 1247, 1290, 1305, 1334, 1380, 1392, 1548, 1656, 1720, 1740, 1840, 1935, 1978, 2001, 2064, 2070, 2088, 2320, 2494, 2580, 2610, 2668, 2760, 2967, 3096, 3312, 3335, 3440, 3480, 3741, 3870, 3956, 4002, 4140, 4176, 4945, 4988, 5160, 5220, 5336, 5520, 5934, 6003, 6192, 6235, 6670, 6960, 7482, 7740, 7912, 8004, 8280, 8901, 9890, 9976, 10005, 10320, 10440, 10672, 11223, 11868, 12006, 12470, 13340, 14835, 14964, 15480, 15824, 16008, 16560, 17802, 18705, 19780, 19952, 20010, 20880, 22446, 23736, 24012, 24940, 26680, 28681, 29670, 29928, 30015, 30960, 32016, 35604, 37410, 39560, 40020, 44505, 44892, 47472, 48024, 49880, 53360, 56115, 57362, 59340, 59856, 60030, 71208, 74820, 79120, 80040, 86043, 89010, 89784, 96048, 99760, 112230, 114724, 118680, 120060, 142416, 143405, 149640, 160080, 172086, 178020, 179568, 224460, 229448, 237360, 240120, 258129, 286810, 299280, 344172, 356040, 430215, 448920, 458896, 480240, 516258, 573620, 688344, 712080, 860430, 897840, 1032516, 1147240, 1290645, 1376688, 1720860, 2065032, 2294480, 2581290, 3441720, 4130064, 5162580, 6883440, 10325160, 20650320]

約数ペア:

[(1, 20650320), (2, 10325160), (3, 6883440), (4, 5162580), (5, 4130064), (6, 3441720), (8, 2581290), (9, 2294480), (10, 2065032), (12, 1720860), (15, 1376688), (16, 1290645), (18, 1147240), (20, 1032516), (23, 897840), (24, 860430), (29, 712080), (30, 688344), (36, 573620), (40, 516258), (43, 480240), (45, 458896), (46, 448920), (48, 430215), (58, 356040), (60, 344172), (69, 299280), (72, 286810), (80, 258129), (86, 240120), (87, 237360), (90, 229448), (92, 224460), (115, 179568), (116, 178020), (120, 172086), (129, 160080), (138, 149640), (144, 143405), (145, 142416), (172, 120060), (174, 118680), (180, 114724), (184, 112230), (207, 99760), (215, 96048), (230, 89784), (232, 89010), (240, 86043), (258, 80040), (261, 79120), (276, 74820), (290, 71208), (344, 60030), (345, 59856), (348, 59340), (360, 57362), (368, 56115), (387, 53360), (414, 49880), (430, 48024), (435, 47472), (460, 44892), (464, 44505), (516, 40020), (522, 39560), (552, 37410), (580, 35604), (645, 32016), (667, 30960), (688, 30015), (690, 29928), (696, 29670), (720, 28681), (774, 26680), (828, 24940), (860, 24012), (870, 23736), (920, 22446), (989, 20880), (1032, 20010), (1035, 19952), (1044, 19780), (1104, 18705), (1160, 17802), (1247, 16560), (1290, 16008), (1305, 15824), (1334, 15480), (1380, 14964), (1392, 14835), (1548, 13340), (1656, 12470), (1720, 12006), (1740, 11868), (1840, 11223), (1935, 10672), (1978, 10440), (2001, 10320), (2064, 10005), (2070, 9976), (2088, 9890), (2320, 8901), (2494, 8280), (2580, 8004), (2610, 7912), (2668, 7740), (2760, 7482), (2967, 6960), (3096, 6670), (3312, 6235), (3335, 6192), (3440, 6003), (3480, 5934), (3741, 5520), (3870, 5336), (3956, 5220), (4002, 5160), (4140, 4988), (4176, 4945)]