28039440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 320

約数和(自身を含む): 109992960

約数和(自身を除く): 81953520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 19, 20, 22, 24, 26, 30, 33, 38, 39, 40, 43, 44, 48, 52, 55, 57, 60, 65, 66, 76, 78, 80, 86, 88, 95, 104, 110, 114, 120, 129, 130, 132, 143, 152, 156, 165, 172, 176, 190, 195, 208, 209, 215, 220, 228, 240, 247, 258, 260, 264, 285, 286, 304, 312, 330, 344, 380, 390, 418, 429, 430, 440, 456, 473, 494, 516, 520, 528, 559, 570, 572, 624, 627, 645, 660, 688, 715, 741, 760, 780, 817, 836, 858, 860, 880, 912, 946, 988, 1032, 1040, 1045, 1118, 1140, 1144, 1235, 1254, 1290, 1320, 1419, 1430, 1482, 1520, 1560, 1634, 1672, 1677, 1716, 1720, 1892, 1976, 2064, 2090, 2145, 2236, 2280, 2288, 2365, 2451, 2470, 2508, 2580, 2640, 2717, 2795, 2838, 2860, 2964, 3120, 3135, 3268, 3344, 3354, 3432, 3440, 3705, 3784, 3952, 4085, 4180, 4290, 4472, 4560, 4730, 4902, 4940, 5016, 5160, 5434, 5590, 5676, 5720, 5928, 6149, 6270, 6536, 6708, 6864, 7095, 7410, 7568, 8151, 8170, 8360, 8385, 8580, 8944, 8987, 9460, 9804, 9880, 10032, 10320, 10621, 10868, 11180, 11352, 11440, 11856, 12255, 12298, 12540, 13072, 13416, 13585, 14190, 14820, 16302, 16340, 16720, 16770, 17160, 17974, 18447, 18920, 19608, 19760, 21242, 21736, 22360, 22704, 24510, 24596, 25080, 26832, 26961, 27170, 28380, 29640, 30745, 31863, 32604, 32680, 33540, 34320, 35948, 36894, 37840, 39216, 40755, 42484, 43472, 44720, 44935, 49020, 49192, 50160, 53105, 53922, 54340, 56760, 59280, 61490, 63726, 65208, 65360, 67080, 71896, 73788, 81510, 84968, 89870, 92235, 98040, 98384, 106210, 107844, 108680, 113520, 116831, 122980, 127452, 130416, 134160, 134805, 143792, 147576, 159315, 163020, 169936, 179740, 184470, 196080, 212420, 215688, 217360, 233662, 245960, 254904, 269610, 295152, 318630, 326040, 350493, 359480, 368940, 424840, 431376, 467324, 491920, 509808, 539220, 584155, 637260, 652080, 700986, 718960, 737880, 849680, 934648, 1078440, 1168310, 1274520, 1401972, 1475760, 1752465, 1869296, 2156880, 2336620, 2549040, 2803944, 3504930, 4673240, 5607888, 7009860, 9346480, 14019720, 28039440]

約数ペア:

[(1, 28039440), (2, 14019720), (3, 9346480), (4, 7009860), (5, 5607888), (6, 4673240), (8, 3504930), (10, 2803944), (11, 2549040), (12, 2336620), (13, 2156880), (15, 1869296), (16, 1752465), (19, 1475760), (20, 1401972), (22, 1274520), (24, 1168310), (26, 1078440), (30, 934648), (33, 849680), (38, 737880), (39, 718960), (40, 700986), (43, 652080), (44, 637260), (48, 584155), (52, 539220), (55, 509808), (57, 491920), (60, 467324), (65, 431376), (66, 424840), (76, 368940), (78, 359480), (80, 350493), (86, 326040), (88, 318630), (95, 295152), (104, 269610), (110, 254904), (114, 245960), (120, 233662), (129, 217360), (130, 215688), (132, 212420), (143, 196080), (152, 184470), (156, 179740), (165, 169936), (172, 163020), (176, 159315), (190, 147576), (195, 143792), (208, 134805), (209, 134160), (215, 130416), (220, 127452), (228, 122980), (240, 116831), (247, 113520), (258, 108680), (260, 107844), (264, 106210), (285, 98384), (286, 98040), (304, 92235), (312, 89870), (330, 84968), (344, 81510), (380, 73788), (390, 71896), (418, 67080), (429, 65360), (430, 65208), (440, 63726), (456, 61490), (473, 59280), (494, 56760), (516, 54340), (520, 53922), (528, 53105), (559, 50160), (570, 49192), (572, 49020), (624, 44935), (627, 44720), (645, 43472), (660, 42484), (688, 40755), (715, 39216), (741, 37840), (760, 36894), (780, 35948), (817, 34320), (836, 33540), (858, 32680), (860, 32604), (880, 31863), (912, 30745), (946, 29640), (988, 28380), (1032, 27170), (1040, 26961), (1045, 26832), (1118, 25080), (1140, 24596), (1144, 24510), (1235, 22704), (1254, 22360), (1290, 21736), (1320, 21242), (1419, 19760), (1430, 19608), (1482, 18920), (1520, 18447), (1560, 17974), (1634, 17160), (1672, 16770), (1677, 16720), (1716, 16340), (1720, 16302), (1892, 14820), (1976, 14190), (2064, 13585), (2090, 13416), (2145, 13072), (2236, 12540), (2280, 12298), (2288, 12255), (2365, 11856), (2451, 11440), (2470, 11352), (2508, 11180), (2580, 10868), (2640, 10621), (2717, 10320), (2795, 10032), (2838, 9880), (2860, 9804), (2964, 9460), (3120, 8987), (3135, 8944), (3268, 8580), (3344, 8385), (3354, 8360), (3432, 8170), (3440, 8151), (3705, 7568), (3784, 7410), (3952, 7095), (4085, 6864), (4180, 6708), (4290, 6536), (4472, 6270), (4560, 6149), (4730, 5928), (4902, 5720), (4940, 5676), (5016, 5590), (5160, 5434)]