840009940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2687}}^1$

素因数の和:2750

約数の個数: 144

約数和(自身を含む): 2316625920

約数和(自身を除く): 1476615980

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 49, 55, 58, 70, 77, 98, 110, 116, 140, 145, 154, 196, 203, 220, 245, 290, 308, 319, 385, 406, 490, 539, 580, 638, 770, 812, 980, 1015, 1078, 1276, 1421, 1540, 1595, 2030, 2156, 2233, 2687, 2695, 2842, 3190, 4060, 4466, 5374, 5390, 5684, 6380, 7105, 8932, 10748, 10780, 11165, 13435, 14210, 15631, 18809, 22330, 26870, 28420, 29557, 31262, 37618, 44660, 53740, 59114, 62524, 75236, 77923, 78155, 94045, 118228, 131663, 147785, 155846, 156310, 188090, 206899, 263326, 295570, 311692, 312620, 376180, 389615, 413798, 526652, 545461, 591140, 658315, 779230, 827596, 857153, 1034495, 1090922, 1316630, 1448293, 1558460, 1714306, 2068990, 2181844, 2633260, 2727305, 2896586, 3428612, 3818227, 4137980, 4285765, 5454610, 5793172, 6000071, 7241465, 7636454, 8571530, 10909220, 12000142, 14482930, 15272908, 17143060, 19091135, 24000284, 28965860, 30000355, 38182270, 42000497, 60000710, 76364540, 84000994, 120001420, 168001988, 210002485, 420004970, 840009940]

約数ペア:

[(1, 840009940), (2, 420004970), (4, 210002485), (5, 168001988), (7, 120001420), (10, 84000994), (11, 76364540), (14, 60000710), (20, 42000497), (22, 38182270), (28, 30000355), (29, 28965860), (35, 24000284), (44, 19091135), (49, 17143060), (55, 15272908), (58, 14482930), (70, 12000142), (77, 10909220), (98, 8571530), (110, 7636454), (116, 7241465), (140, 6000071), (145, 5793172), (154, 5454610), (196, 4285765), (203, 4137980), (220, 3818227), (245, 3428612), (290, 2896586), (308, 2727305), (319, 2633260), (385, 2181844), (406, 2068990), (490, 1714306), (539, 1558460), (580, 1448293), (638, 1316630), (770, 1090922), (812, 1034495), (980, 857153), (1015, 827596), (1078, 779230), (1276, 658315), (1421, 591140), (1540, 545461), (1595, 526652), (2030, 413798), (2156, 389615), (2233, 376180), (2687, 312620), (2695, 311692), (2842, 295570), (3190, 263326), (4060, 206899), (4466, 188090), (5374, 156310), (5390, 155846), (5684, 147785), (6380, 131663), (7105, 118228), (8932, 94045), (10748, 78155), (10780, 77923), (11165, 75236), (13435, 62524), (14210, 59114), (15631, 53740), (18809, 44660), (22330, 37618), (26870, 31262), (28420, 29557)]