285945240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:270

約数の個数: 256

約数和(自身を含む): 1032192000

約数和(自身を除く): 746246760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 79, 84, 93, 105, 120, 124, 139, 140, 155, 158, 168, 186, 210, 217, 237, 248, 278, 280, 310, 316, 372, 395, 417, 420, 434, 465, 474, 553, 556, 620, 632, 651, 695, 744, 790, 834, 840, 868, 930, 948, 973, 1085, 1106, 1112, 1185, 1240, 1302, 1390, 1580, 1659, 1668, 1736, 1860, 1896, 1946, 2085, 2170, 2212, 2370, 2449, 2604, 2765, 2780, 2919, 3160, 3255, 3318, 3336, 3720, 3892, 4170, 4309, 4340, 4424, 4740, 4865, 4898, 5208, 5530, 5560, 5838, 6510, 6636, 7347, 7784, 8295, 8340, 8618, 8680, 9480, 9730, 9796, 10981, 11060, 11676, 12245, 12927, 13020, 13272, 14595, 14694, 16590, 16680, 17143, 17236, 19460, 19592, 21545, 21962, 22120, 23352, 24490, 25854, 26040, 29190, 29388, 30163, 32943, 33180, 34286, 34472, 36735, 38920, 43090, 43924, 48980, 51429, 51708, 54905, 58380, 58776, 60326, 64635, 65886, 66360, 68572, 73470, 76867, 85715, 86180, 87848, 90489, 97960, 102858, 103416, 109810, 116760, 120652, 129270, 131772, 137144, 146940, 150815, 153734, 164715, 171430, 172360, 180978, 205716, 219620, 230601, 241304, 257145, 258540, 263544, 293880, 301630, 307468, 329430, 340411, 342860, 361956, 384335, 411432, 439240, 452445, 461202, 514290, 517080, 603260, 614936, 658860, 680822, 685720, 723912, 768670, 904890, 922404, 1021233, 1028580, 1153005, 1206520, 1317720, 1361644, 1537340, 1702055, 1809780, 1844808, 2042466, 2057160, 2306010, 2382877, 2723288, 3074680, 3404110, 3619560, 4084932, 4612020, 4765754, 5106165, 6808220, 7148631, 8169864, 9224040, 9531508, 10212330, 11914385, 13616440, 14297262, 19063016, 20424660, 23828770, 28594524, 35743155, 40849320, 47657540, 57189048, 71486310, 95315080, 142972620, 285945240]

約数ペア:

[(1, 285945240), (2, 142972620), (3, 95315080), (4, 71486310), (5, 57189048), (6, 47657540), (7, 40849320), (8, 35743155), (10, 28594524), (12, 23828770), (14, 20424660), (15, 19063016), (20, 14297262), (21, 13616440), (24, 11914385), (28, 10212330), (30, 9531508), (31, 9224040), (35, 8169864), (40, 7148631), (42, 6808220), (56, 5106165), (60, 4765754), (62, 4612020), (70, 4084932), (79, 3619560), (84, 3404110), (93, 3074680), (105, 2723288), (120, 2382877), (124, 2306010), (139, 2057160), (140, 2042466), (155, 1844808), (158, 1809780), (168, 1702055), (186, 1537340), (210, 1361644), (217, 1317720), (237, 1206520), (248, 1153005), (278, 1028580), (280, 1021233), (310, 922404), (316, 904890), (372, 768670), (395, 723912), (417, 685720), (420, 680822), (434, 658860), (465, 614936), (474, 603260), (553, 517080), (556, 514290), (620, 461202), (632, 452445), (651, 439240), (695, 411432), (744, 384335), (790, 361956), (834, 342860), (840, 340411), (868, 329430), (930, 307468), (948, 301630), (973, 293880), (1085, 263544), (1106, 258540), (1112, 257145), (1185, 241304), (1240, 230601), (1302, 219620), (1390, 205716), (1580, 180978), (1659, 172360), (1668, 171430), (1736, 164715), (1860, 153734), (1896, 150815), (1946, 146940), (2085, 137144), (2170, 131772), (2212, 129270), (2370, 120652), (2449, 116760), (2604, 109810), (2765, 103416), (2780, 102858), (2919, 97960), (3160, 90489), (3255, 87848), (3318, 86180), (3336, 85715), (3720, 76867), (3892, 73470), (4170, 68572), (4309, 66360), (4340, 65886), (4424, 64635), (4740, 60326), (4865, 58776), (4898, 58380), (5208, 54905), (5530, 51708), (5560, 51429), (5838, 48980), (6510, 43924), (6636, 43090), (7347, 38920), (7784, 36735), (8295, 34472), (8340, 34286), (8618, 33180), (8680, 32943), (9480, 30163), (9730, 29388), (9796, 29190), (10981, 26040), (11060, 25854), (11676, 24490), (12245, 23352), (12927, 22120), (13020, 21962), (13272, 21545), (14595, 19592), (14694, 19460), (16590, 17236), (16680, 17143)]