81438000

素因数分解:

$2^4\times 3^1\times 5^3\times 7^2\times {\mathrm{277}}^1$

素因数の和:317

約数の個数: 240

約数和(自身を含む): 306525024

約数和(自身を除く): 225087024

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 98, 100, 105, 112, 120, 125, 140, 147, 150, 168, 175, 196, 200, 210, 240, 245, 250, 277, 280, 294, 300, 336, 350, 375, 392, 400, 420, 490, 500, 525, 554, 560, 588, 600, 700, 735, 750, 784, 831, 840, 875, 980, 1000, 1050, 1108, 1176, 1200, 1225, 1385, 1400, 1470, 1500, 1662, 1680, 1750, 1939, 1960, 2000, 2100, 2216, 2352, 2450, 2625, 2770, 2800, 2940, 3000, 3324, 3500, 3675, 3878, 3920, 4155, 4200, 4432, 4900, 5250, 5540, 5817, 5880, 6000, 6125, 6648, 6925, 7000, 7350, 7756, 8310, 8400, 9695, 9800, 10500, 11080, 11634, 11760, 12250, 13296, 13573, 13850, 14000, 14700, 15512, 16620, 18375, 19390, 19600, 20775, 21000, 22160, 23268, 24500, 27146, 27700, 29085, 29400, 31024, 33240, 34625, 36750, 38780, 40719, 41550, 42000, 46536, 48475, 49000, 54292, 55400, 58170, 58800, 66480, 67865, 69250, 73500, 77560, 81438, 83100, 93072, 96950, 98000, 103875, 108584, 110800, 116340, 135730, 138500, 145425, 147000, 155120, 162876, 166200, 193900, 203595, 207750, 217168, 232680, 242375, 271460, 277000, 290850, 294000, 325752, 332400, 339325, 387800, 407190, 415500, 465360, 484750, 542920, 554000, 581700, 651504, 678650, 727125, 775600, 814380, 831000, 969500, 1017975, 1085840, 1163400, 1357300, 1454250, 1628760, 1662000, 1696625, 1939000, 2035950, 2326800, 2714600, 2908500, 3257520, 3393250, 3878000, 4071900, 5089875, 5429200, 5817000, 6786500, 8143800, 10179750, 11634000, 13573000, 16287600, 20359500, 27146000, 40719000, 81438000]

約数ペア:

[(1, 81438000), (2, 40719000), (3, 27146000), (4, 20359500), (5, 16287600), (6, 13573000), (7, 11634000), (8, 10179750), (10, 8143800), (12, 6786500), (14, 5817000), (15, 5429200), (16, 5089875), (20, 4071900), (21, 3878000), (24, 3393250), (25, 3257520), (28, 2908500), (30, 2714600), (35, 2326800), (40, 2035950), (42, 1939000), (48, 1696625), (49, 1662000), (50, 1628760), (56, 1454250), (60, 1357300), (70, 1163400), (75, 1085840), (80, 1017975), (84, 969500), (98, 831000), (100, 814380), (105, 775600), (112, 727125), (120, 678650), (125, 651504), (140, 581700), (147, 554000), (150, 542920), (168, 484750), (175, 465360), (196, 415500), (200, 407190), (210, 387800), (240, 339325), (245, 332400), (250, 325752), (277, 294000), (280, 290850), (294, 277000), (300, 271460), (336, 242375), (350, 232680), (375, 217168), (392, 207750), (400, 203595), (420, 193900), (490, 166200), (500, 162876), (525, 155120), (554, 147000), (560, 145425), (588, 138500), (600, 135730), (700, 116340), (735, 110800), (750, 108584), (784, 103875), (831, 98000), (840, 96950), (875, 93072), (980, 83100), (1000, 81438), (1050, 77560), (1108, 73500), (1176, 69250), (1200, 67865), (1225, 66480), (1385, 58800), (1400, 58170), (1470, 55400), (1500, 54292), (1662, 49000), (1680, 48475), (1750, 46536), (1939, 42000), (1960, 41550), (2000, 40719), (2100, 38780), (2216, 36750), (2352, 34625), (2450, 33240), (2625, 31024), (2770, 29400), (2800, 29085), (2940, 27700), (3000, 27146), (3324, 24500), (3500, 23268), (3675, 22160), (3878, 21000), (3920, 20775), (4155, 19600), (4200, 19390), (4432, 18375), (4900, 16620), (5250, 15512), (5540, 14700), (5817, 14000), (5880, 13850), (6000, 13573), (6125, 13296), (6648, 12250), (6925, 11760), (7000, 11634), (7350, 11080), (7756, 10500), (8310, 9800), (8400, 9695)]