420721980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:588

約数の個数: 192

約数和(自身を含む): 1422489600

約数和(自身を除く): 1001767620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 97, 105, 115, 138, 140, 161, 194, 210, 230, 276, 291, 322, 345, 388, 420, 449, 460, 483, 485, 582, 644, 679, 690, 805, 898, 966, 970, 1164, 1347, 1358, 1380, 1455, 1610, 1796, 1932, 1940, 2037, 2231, 2245, 2415, 2694, 2716, 2910, 3143, 3220, 3395, 4074, 4462, 4490, 4830, 5388, 5820, 6286, 6693, 6735, 6790, 8148, 8924, 8980, 9429, 9660, 10185, 10327, 11155, 12572, 13386, 13470, 13580, 15617, 15715, 18858, 20370, 20654, 22310, 26772, 26940, 30981, 31234, 31430, 33465, 37716, 40740, 41308, 43553, 44620, 46851, 47145, 51635, 61962, 62468, 62860, 66930, 72289, 78085, 87106, 93702, 94290, 103270, 123924, 130659, 133860, 144578, 154905, 156170, 174212, 187404, 188580, 206540, 216867, 217765, 234255, 261318, 289156, 304871, 309810, 312340, 361445, 433734, 435530, 468510, 522636, 609742, 619620, 653295, 722890, 867468, 871060, 914613, 937020, 1001719, 1084335, 1219484, 1306590, 1445780, 1524355, 1829226, 2003438, 2168670, 2613180, 3005157, 3048710, 3658452, 4006876, 4337340, 4573065, 5008595, 6010314, 6097420, 7012033, 9146130, 10017190, 12020628, 14024066, 15025785, 18292260, 20034380, 21036099, 28048132, 30051570, 35060165, 42072198, 60103140, 70120330, 84144396, 105180495, 140240660, 210360990, 420721980]

約数ペア:

[(1, 420721980), (2, 210360990), (3, 140240660), (4, 105180495), (5, 84144396), (6, 70120330), (7, 60103140), (10, 42072198), (12, 35060165), (14, 30051570), (15, 28048132), (20, 21036099), (21, 20034380), (23, 18292260), (28, 15025785), (30, 14024066), (35, 12020628), (42, 10017190), (46, 9146130), (60, 7012033), (69, 6097420), (70, 6010314), (84, 5008595), (92, 4573065), (97, 4337340), (105, 4006876), (115, 3658452), (138, 3048710), (140, 3005157), (161, 2613180), (194, 2168670), (210, 2003438), (230, 1829226), (276, 1524355), (291, 1445780), (322, 1306590), (345, 1219484), (388, 1084335), (420, 1001719), (449, 937020), (460, 914613), (483, 871060), (485, 867468), (582, 722890), (644, 653295), (679, 619620), (690, 609742), (805, 522636), (898, 468510), (966, 435530), (970, 433734), (1164, 361445), (1347, 312340), (1358, 309810), (1380, 304871), (1455, 289156), (1610, 261318), (1796, 234255), (1932, 217765), (1940, 216867), (2037, 206540), (2231, 188580), (2245, 187404), (2415, 174212), (2694, 156170), (2716, 154905), (2910, 144578), (3143, 133860), (3220, 130659), (3395, 123924), (4074, 103270), (4462, 94290), (4490, 93702), (4830, 87106), (5388, 78085), (5820, 72289), (6286, 66930), (6693, 62860), (6735, 62468), (6790, 61962), (8148, 51635), (8924, 47145), (8980, 46851), (9429, 44620), (9660, 43553), (10185, 41308), (10327, 40740), (11155, 37716), (12572, 33465), (13386, 31430), (13470, 31234), (13580, 30981), (15617, 26940), (15715, 26772), (18858, 22310), (20370, 20654)]