638224920

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:581

約数の個数: 224

約数和(自身を含む): 2207422800

約数和(自身を除く): 1569197880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 81, 86, 90, 108, 120, 129, 135, 162, 172, 180, 215, 216, 243, 258, 270, 324, 344, 360, 387, 405, 430, 486, 509, 516, 540, 645, 648, 729, 774, 810, 860, 972, 1018, 1032, 1080, 1161, 1215, 1290, 1458, 1527, 1548, 1620, 1720, 1935, 1944, 2036, 2322, 2430, 2545, 2580, 2916, 3054, 3096, 3240, 3483, 3645, 3870, 4072, 4581, 4644, 4860, 5090, 5160, 5805, 5832, 6108, 6966, 7290, 7635, 7740, 9162, 9288, 9720, 10180, 10449, 11610, 12216, 13743, 13932, 14580, 15270, 15480, 17415, 18324, 20360, 20898, 21887, 22905, 23220, 27486, 27864, 29160, 30540, 31347, 34830, 36648, 41229, 41796, 43774, 45810, 46440, 52245, 54972, 61080, 62694, 65661, 68715, 69660, 82458, 83592, 87548, 91620, 104490, 109435, 109944, 123687, 125388, 131322, 137430, 139320, 156735, 164916, 175096, 183240, 196983, 206145, 208980, 218870, 247374, 250776, 262644, 274860, 313470, 328305, 329832, 371061, 393966, 412290, 417960, 437740, 494748, 525288, 549720, 590949, 618435, 626940, 656610, 742122, 787932, 824580, 875480, 984915, 989496, 1181898, 1236870, 1253880, 1313220, 1484244, 1575864, 1649160, 1772847, 1855305, 1969830, 2363796, 2473740, 2626440, 2954745, 2968488, 3545694, 3710610, 3939660, 4727592, 4947480, 5318541, 5909490, 7091388, 7421220, 7879320, 8864235, 10637082, 11818980, 14182776, 14842440, 15955623, 17728470, 21274164, 23637960, 26592705, 31911246, 35456940, 42548328, 53185410, 63822492, 70913880, 79778115, 106370820, 127644984, 159556230, 212741640, 319112460, 638224920]

約数ペア:

[(1, 638224920), (2, 319112460), (3, 212741640), (4, 159556230), (5, 127644984), (6, 106370820), (8, 79778115), (9, 70913880), (10, 63822492), (12, 53185410), (15, 42548328), (18, 35456940), (20, 31911246), (24, 26592705), (27, 23637960), (30, 21274164), (36, 17728470), (40, 15955623), (43, 14842440), (45, 14182776), (54, 11818980), (60, 10637082), (72, 8864235), (81, 7879320), (86, 7421220), (90, 7091388), (108, 5909490), (120, 5318541), (129, 4947480), (135, 4727592), (162, 3939660), (172, 3710610), (180, 3545694), (215, 2968488), (216, 2954745), (243, 2626440), (258, 2473740), (270, 2363796), (324, 1969830), (344, 1855305), (360, 1772847), (387, 1649160), (405, 1575864), (430, 1484244), (486, 1313220), (509, 1253880), (516, 1236870), (540, 1181898), (645, 989496), (648, 984915), (729, 875480), (774, 824580), (810, 787932), (860, 742122), (972, 656610), (1018, 626940), (1032, 618435), (1080, 590949), (1161, 549720), (1215, 525288), (1290, 494748), (1458, 437740), (1527, 417960), (1548, 412290), (1620, 393966), (1720, 371061), (1935, 329832), (1944, 328305), (2036, 313470), (2322, 274860), (2430, 262644), (2545, 250776), (2580, 247374), (2916, 218870), (3054, 208980), (3096, 206145), (3240, 196983), (3483, 183240), (3645, 175096), (3870, 164916), (4072, 156735), (4581, 139320), (4644, 137430), (4860, 131322), (5090, 125388), (5160, 123687), (5805, 109944), (5832, 109435), (6108, 104490), (6966, 91620), (7290, 87548), (7635, 83592), (7740, 82458), (9162, 69660), (9288, 68715), (9720, 65661), (10180, 62694), (10449, 61080), (11610, 54972), (12216, 52245), (13743, 46440), (13932, 45810), (14580, 43774), (15270, 41796), (15480, 41229), (17415, 36648), (18324, 34830), (20360, 31347), (20898, 30540), (21887, 29160), (22905, 27864), (23220, 27486)]