261222120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:400

約数の個数: 192

約数和(自身を含む): 889574400

約数和(自身を除く): 628352280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 89, 90, 93, 120, 124, 155, 178, 180, 186, 248, 263, 267, 279, 310, 356, 360, 372, 445, 465, 526, 534, 558, 620, 712, 744, 789, 801, 890, 930, 1052, 1068, 1116, 1240, 1315, 1335, 1395, 1578, 1602, 1780, 1860, 2104, 2136, 2232, 2367, 2630, 2670, 2759, 2790, 3156, 3204, 3560, 3720, 3945, 4005, 4734, 5260, 5340, 5518, 5580, 6312, 6408, 7890, 8010, 8153, 8277, 9468, 10520, 10680, 11036, 11160, 11835, 13795, 15780, 16020, 16306, 16554, 18936, 22072, 23407, 23670, 24459, 24831, 27590, 31560, 32040, 32612, 33108, 40765, 41385, 46814, 47340, 48918, 49662, 55180, 65224, 66216, 70221, 73377, 81530, 82770, 93628, 94680, 97836, 99324, 110360, 117035, 122295, 124155, 140442, 146754, 163060, 165540, 187256, 195672, 198648, 210663, 234070, 244590, 248310, 280884, 293508, 326120, 331080, 351105, 366885, 421326, 468140, 489180, 496620, 561768, 587016, 702210, 725617, 733770, 842652, 936280, 978360, 993240, 1053315, 1404420, 1451234, 1467540, 1685304, 2106630, 2176851, 2808840, 2902468, 2935080, 3628085, 4213260, 4353702, 5804936, 6530553, 7256170, 8426520, 8707404, 10884255, 13061106, 14512340, 17414808, 21768510, 26122212, 29024680, 32652765, 43537020, 52244424, 65305530, 87074040, 130611060, 261222120]

約数ペア:

[(1, 261222120), (2, 130611060), (3, 87074040), (4, 65305530), (5, 52244424), (6, 43537020), (8, 32652765), (9, 29024680), (10, 26122212), (12, 21768510), (15, 17414808), (18, 14512340), (20, 13061106), (24, 10884255), (30, 8707404), (31, 8426520), (36, 7256170), (40, 6530553), (45, 5804936), (60, 4353702), (62, 4213260), (72, 3628085), (89, 2935080), (90, 2902468), (93, 2808840), (120, 2176851), (124, 2106630), (155, 1685304), (178, 1467540), (180, 1451234), (186, 1404420), (248, 1053315), (263, 993240), (267, 978360), (279, 936280), (310, 842652), (356, 733770), (360, 725617), (372, 702210), (445, 587016), (465, 561768), (526, 496620), (534, 489180), (558, 468140), (620, 421326), (712, 366885), (744, 351105), (789, 331080), (801, 326120), (890, 293508), (930, 280884), (1052, 248310), (1068, 244590), (1116, 234070), (1240, 210663), (1315, 198648), (1335, 195672), (1395, 187256), (1578, 165540), (1602, 163060), (1780, 146754), (1860, 140442), (2104, 124155), (2136, 122295), (2232, 117035), (2367, 110360), (2630, 99324), (2670, 97836), (2759, 94680), (2790, 93628), (3156, 82770), (3204, 81530), (3560, 73377), (3720, 70221), (3945, 66216), (4005, 65224), (4734, 55180), (5260, 49662), (5340, 48918), (5518, 47340), (5580, 46814), (6312, 41385), (6408, 40765), (7890, 33108), (8010, 32612), (8153, 32040), (8277, 31560), (9468, 27590), (10520, 24831), (10680, 24459), (11036, 23670), (11160, 23407), (11835, 22072), (13795, 18936), (15780, 16554), (16020, 16306)]