28938140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 192

約数和(自身を含む): 85155840

約数和(自身を除く): 56217700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 23, 28, 35, 38, 43, 44, 46, 55, 70, 76, 77, 86, 92, 95, 110, 115, 133, 140, 154, 161, 172, 190, 209, 215, 220, 230, 253, 266, 301, 308, 322, 380, 385, 418, 430, 437, 460, 473, 506, 532, 602, 644, 665, 770, 805, 817, 836, 860, 874, 946, 989, 1012, 1045, 1204, 1265, 1330, 1463, 1505, 1540, 1610, 1634, 1748, 1771, 1892, 1978, 2090, 2185, 2365, 2530, 2660, 2926, 3010, 3059, 3220, 3268, 3311, 3542, 3956, 4085, 4180, 4370, 4730, 4807, 4945, 5060, 5719, 5852, 6020, 6118, 6622, 6923, 7084, 7315, 8170, 8740, 8855, 8987, 9460, 9614, 9890, 10879, 11438, 12236, 13244, 13846, 14630, 15295, 16340, 16555, 17710, 17974, 18791, 19228, 19780, 21758, 22876, 24035, 27692, 28595, 29260, 30590, 33110, 33649, 34615, 35420, 35948, 37582, 43516, 44935, 48070, 54395, 57190, 61180, 62909, 66220, 67298, 69230, 75164, 76153, 89870, 93955, 96140, 108790, 114380, 125818, 131537, 134596, 138460, 152306, 168245, 179740, 187910, 206701, 217580, 251636, 263074, 304612, 314545, 336490, 375820, 380765, 413402, 526148, 629090, 657685, 672980, 761530, 826804, 1033505, 1258180, 1315370, 1446907, 1523060, 2067010, 2630740, 2893814, 4134020, 5787628, 7234535, 14469070, 28938140]

約数ペア:

[(1, 28938140), (2, 14469070), (4, 7234535), (5, 5787628), (7, 4134020), (10, 2893814), (11, 2630740), (14, 2067010), (19, 1523060), (20, 1446907), (22, 1315370), (23, 1258180), (28, 1033505), (35, 826804), (38, 761530), (43, 672980), (44, 657685), (46, 629090), (55, 526148), (70, 413402), (76, 380765), (77, 375820), (86, 336490), (92, 314545), (95, 304612), (110, 263074), (115, 251636), (133, 217580), (140, 206701), (154, 187910), (161, 179740), (172, 168245), (190, 152306), (209, 138460), (215, 134596), (220, 131537), (230, 125818), (253, 114380), (266, 108790), (301, 96140), (308, 93955), (322, 89870), (380, 76153), (385, 75164), (418, 69230), (430, 67298), (437, 66220), (460, 62909), (473, 61180), (506, 57190), (532, 54395), (602, 48070), (644, 44935), (665, 43516), (770, 37582), (805, 35948), (817, 35420), (836, 34615), (860, 33649), (874, 33110), (946, 30590), (989, 29260), (1012, 28595), (1045, 27692), (1204, 24035), (1265, 22876), (1330, 21758), (1463, 19780), (1505, 19228), (1540, 18791), (1610, 17974), (1634, 17710), (1748, 16555), (1771, 16340), (1892, 15295), (1978, 14630), (2090, 13846), (2185, 13244), (2365, 12236), (2530, 11438), (2660, 10879), (2926, 9890), (3010, 9614), (3059, 9460), (3220, 8987), (3268, 8855), (3311, 8740), (3542, 8170), (3956, 7315), (4085, 7084), (4180, 6923), (4370, 6622), (4730, 6118), (4807, 6020), (4945, 5852), (5060, 5719)]