81854640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 240

約数和(自身を含む): 319176000

約数和(自身を除く): 237321360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 109, 112, 120, 126, 140, 144, 149, 168, 180, 210, 218, 240, 252, 280, 298, 315, 327, 336, 360, 420, 436, 447, 504, 545, 560, 596, 630, 654, 720, 745, 763, 840, 872, 894, 981, 1008, 1043, 1090, 1192, 1260, 1308, 1341, 1490, 1526, 1635, 1680, 1744, 1788, 1962, 2086, 2180, 2235, 2289, 2384, 2520, 2616, 2682, 2980, 3052, 3129, 3270, 3576, 3815, 3924, 4172, 4360, 4470, 4578, 4905, 5040, 5215, 5232, 5364, 5960, 6104, 6258, 6540, 6705, 6867, 7152, 7630, 7848, 8344, 8720, 8940, 9156, 9387, 9810, 10430, 10728, 11445, 11920, 12208, 12516, 13080, 13410, 13734, 15260, 15645, 15696, 16241, 16688, 17880, 18312, 18774, 19620, 20860, 21456, 22890, 25032, 26160, 26820, 27468, 30520, 31290, 32482, 34335, 35760, 36624, 37548, 39240, 41720, 45780, 46935, 48723, 50064, 53640, 54936, 61040, 62580, 64964, 68670, 75096, 78480, 81205, 83440, 91560, 93870, 97446, 107280, 109872, 113687, 125160, 129928, 137340, 146169, 150192, 162410, 183120, 187740, 194892, 227374, 243615, 250320, 259856, 274680, 292338, 324820, 341061, 375480, 389784, 454748, 487230, 549360, 568435, 584676, 649640, 682122, 730845, 750960, 779568, 909496, 974460, 1023183, 1136870, 1169352, 1299280, 1364244, 1461690, 1705305, 1818992, 1948920, 2046366, 2273740, 2338704, 2728488, 2923380, 3410610, 3897840, 4092732, 4547480, 5115915, 5456976, 5846760, 6821220, 8185464, 9094960, 10231830, 11693520, 13642440, 16370928, 20463660, 27284880, 40927320, 81854640]

約数ペア:

[(1, 81854640), (2, 40927320), (3, 27284880), (4, 20463660), (5, 16370928), (6, 13642440), (7, 11693520), (8, 10231830), (9, 9094960), (10, 8185464), (12, 6821220), (14, 5846760), (15, 5456976), (16, 5115915), (18, 4547480), (20, 4092732), (21, 3897840), (24, 3410610), (28, 2923380), (30, 2728488), (35, 2338704), (36, 2273740), (40, 2046366), (42, 1948920), (45, 1818992), (48, 1705305), (56, 1461690), (60, 1364244), (63, 1299280), (70, 1169352), (72, 1136870), (80, 1023183), (84, 974460), (90, 909496), (105, 779568), (109, 750960), (112, 730845), (120, 682122), (126, 649640), (140, 584676), (144, 568435), (149, 549360), (168, 487230), (180, 454748), (210, 389784), (218, 375480), (240, 341061), (252, 324820), (280, 292338), (298, 274680), (315, 259856), (327, 250320), (336, 243615), (360, 227374), (420, 194892), (436, 187740), (447, 183120), (504, 162410), (545, 150192), (560, 146169), (596, 137340), (630, 129928), (654, 125160), (720, 113687), (745, 109872), (763, 107280), (840, 97446), (872, 93870), (894, 91560), (981, 83440), (1008, 81205), (1043, 78480), (1090, 75096), (1192, 68670), (1260, 64964), (1308, 62580), (1341, 61040), (1490, 54936), (1526, 53640), (1635, 50064), (1680, 48723), (1744, 46935), (1788, 45780), (1962, 41720), (2086, 39240), (2180, 37548), (2235, 36624), (2289, 35760), (2384, 34335), (2520, 32482), (2616, 31290), (2682, 30520), (2980, 27468), (3052, 26820), (3129, 26160), (3270, 25032), (3576, 22890), (3815, 21456), (3924, 20860), (4172, 19620), (4360, 18774), (4470, 18312), (4578, 17880), (4905, 16688), (5040, 16241), (5215, 15696), (5232, 15645), (5364, 15260), (5960, 13734), (6104, 13410), (6258, 13080), (6540, 12516), (6705, 12208), (6867, 11920), (7152, 11445), (7630, 10728), (7848, 10430), (8344, 9810), (8720, 9387), (8940, 9156)]