21790481580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{178289}}^1$

素因数の和:178408

約数の個数: 144

約数和(自身を含む): 76319530560

約数和(自身を除く): 54529048980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 140, 180, 194, 210, 252, 291, 315, 388, 420, 485, 582, 630, 679, 873, 970, 1164, 1260, 1358, 1455, 1746, 1940, 2037, 2716, 2910, 3395, 3492, 4074, 4365, 5820, 6111, 6790, 8148, 8730, 10185, 12222, 13580, 17460, 20370, 24444, 30555, 40740, 61110, 122220, 178289, 356578, 534867, 713156, 891445, 1069734, 1248023, 1604601, 1782890, 2139468, 2496046, 2674335, 3209202, 3565780, 3744069, 4992092, 5348670, 6240115, 6418404, 7488138, 8023005, 10697340, 11232207, 12480230, 14976276, 16046010, 17294033, 18720345, 22464414, 24960460, 32092020, 34588066, 37440690, 44928828, 51882099, 56161035, 69176132, 74881380, 86470165, 103764198, 112322070, 121058231, 155646297, 172940330, 207528396, 224644140, 242116462, 259410495, 311292594, 345880660, 363174693, 484232924, 518820990, 605291155, 622585188, 726349386, 778231485, 1037641980, 1089524079, 1210582310, 1452698772, 1556462970, 1815873465, 2179048158, 2421164620, 3112925940, 3631746930, 4358096316, 5447620395, 7263493860, 10895240790, 21790481580]

約数ペア:

[(1, 21790481580), (2, 10895240790), (3, 7263493860), (4, 5447620395), (5, 4358096316), (6, 3631746930), (7, 3112925940), (9, 2421164620), (10, 2179048158), (12, 1815873465), (14, 1556462970), (15, 1452698772), (18, 1210582310), (20, 1089524079), (21, 1037641980), (28, 778231485), (30, 726349386), (35, 622585188), (36, 605291155), (42, 518820990), (45, 484232924), (60, 363174693), (63, 345880660), (70, 311292594), (84, 259410495), (90, 242116462), (97, 224644140), (105, 207528396), (126, 172940330), (140, 155646297), (180, 121058231), (194, 112322070), (210, 103764198), (252, 86470165), (291, 74881380), (315, 69176132), (388, 56161035), (420, 51882099), (485, 44928828), (582, 37440690), (630, 34588066), (679, 32092020), (873, 24960460), (970, 22464414), (1164, 18720345), (1260, 17294033), (1358, 16046010), (1455, 14976276), (1746, 12480230), (1940, 11232207), (2037, 10697340), (2716, 8023005), (2910, 7488138), (3395, 6418404), (3492, 6240115), (4074, 5348670), (4365, 4992092), (5820, 3744069), (6111, 3565780), (6790, 3209202), (8148, 2674335), (8730, 2496046), (10185, 2139468), (12222, 1782890), (13580, 1604601), (17460, 1248023), (20370, 1069734), (24444, 891445), (30555, 713156), (40740, 534867), (61110, 356578), (122220, 178289)]