28000440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 192

約数和(自身を含む): 101687040

約数和(自身を除く): 73686600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 52, 60, 62, 65, 72, 78, 90, 93, 104, 117, 120, 124, 130, 155, 156, 180, 186, 193, 195, 234, 248, 260, 279, 310, 312, 360, 372, 386, 390, 403, 465, 468, 520, 558, 579, 585, 620, 744, 772, 780, 806, 930, 936, 965, 1116, 1158, 1170, 1209, 1240, 1395, 1544, 1560, 1612, 1737, 1860, 1930, 2015, 2232, 2316, 2340, 2418, 2509, 2790, 2895, 3224, 3474, 3627, 3720, 3860, 4030, 4632, 4680, 4836, 5018, 5580, 5790, 5983, 6045, 6948, 7254, 7527, 7720, 8060, 8685, 9672, 10036, 11160, 11580, 11966, 12090, 12545, 13896, 14508, 15054, 16120, 17370, 17949, 18135, 20072, 22581, 23160, 23932, 24180, 25090, 29016, 29915, 30108, 34740, 35898, 36270, 37635, 45162, 47864, 48360, 50180, 53847, 59830, 60216, 69480, 71796, 72540, 75270, 77779, 89745, 90324, 100360, 107694, 112905, 119660, 143592, 145080, 150540, 155558, 179490, 180648, 215388, 225810, 233337, 239320, 269235, 301080, 311116, 358980, 388895, 430776, 451620, 466674, 538470, 622232, 700011, 717960, 777790, 903240, 933348, 1076940, 1166685, 1400022, 1555580, 1866696, 2153880, 2333370, 2800044, 3111160, 3500055, 4666740, 5600088, 7000110, 9333480, 14000220, 28000440]

約数ペア:

[(1, 28000440), (2, 14000220), (3, 9333480), (4, 7000110), (5, 5600088), (6, 4666740), (8, 3500055), (9, 3111160), (10, 2800044), (12, 2333370), (13, 2153880), (15, 1866696), (18, 1555580), (20, 1400022), (24, 1166685), (26, 1076940), (30, 933348), (31, 903240), (36, 777790), (39, 717960), (40, 700011), (45, 622232), (52, 538470), (60, 466674), (62, 451620), (65, 430776), (72, 388895), (78, 358980), (90, 311116), (93, 301080), (104, 269235), (117, 239320), (120, 233337), (124, 225810), (130, 215388), (155, 180648), (156, 179490), (180, 155558), (186, 150540), (193, 145080), (195, 143592), (234, 119660), (248, 112905), (260, 107694), (279, 100360), (310, 90324), (312, 89745), (360, 77779), (372, 75270), (386, 72540), (390, 71796), (403, 69480), (465, 60216), (468, 59830), (520, 53847), (558, 50180), (579, 48360), (585, 47864), (620, 45162), (744, 37635), (772, 36270), (780, 35898), (806, 34740), (930, 30108), (936, 29915), (965, 29016), (1116, 25090), (1158, 24180), (1170, 23932), (1209, 23160), (1240, 22581), (1395, 20072), (1544, 18135), (1560, 17949), (1612, 17370), (1737, 16120), (1860, 15054), (1930, 14508), (2015, 13896), (2232, 12545), (2316, 12090), (2340, 11966), (2418, 11580), (2509, 11160), (2790, 10036), (2895, 9672), (3224, 8685), (3474, 8060), (3627, 7720), (3720, 7527), (3860, 7254), (4030, 6948), (4632, 6045), (4680, 5983), (4836, 5790), (5018, 5580)]