261424240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:136

約数の個数: 240

約数和(自身を含む): 803948544

約数和(自身を除く): 542524304

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 37, 40, 44, 55, 56, 62, 70, 74, 77, 80, 88, 110, 112, 124, 140, 148, 154, 155, 176, 185, 217, 220, 248, 259, 280, 296, 308, 310, 341, 370, 385, 407, 434, 440, 496, 518, 560, 592, 616, 620, 682, 740, 770, 814, 868, 880, 1036, 1085, 1147, 1232, 1240, 1295, 1364, 1369, 1480, 1540, 1628, 1705, 1736, 2035, 2072, 2170, 2294, 2387, 2480, 2590, 2728, 2738, 2849, 2960, 3080, 3256, 3410, 3472, 4070, 4144, 4340, 4588, 4774, 5180, 5456, 5476, 5698, 5735, 6160, 6512, 6820, 6845, 8029, 8140, 8680, 9176, 9548, 9583, 10360, 10952, 11396, 11470, 11935, 12617, 13640, 13690, 14245, 15059, 16058, 16280, 17360, 18352, 19096, 19166, 20720, 21904, 22792, 22940, 23870, 25234, 27280, 27380, 28490, 30118, 32116, 32560, 38192, 38332, 40145, 42439, 45584, 45880, 47740, 47915, 50468, 54760, 56980, 60236, 63085, 64232, 75295, 76664, 80290, 84878, 88319, 91760, 95480, 95830, 100936, 105413, 109520, 113960, 120472, 126170, 128464, 150590, 153328, 160580, 169756, 176638, 190960, 191660, 201872, 210826, 212195, 227920, 240944, 252340, 297073, 301180, 321160, 339512, 353276, 383320, 421652, 424390, 441595, 466829, 504680, 527065, 594146, 602360, 642320, 679024, 706552, 766640, 843304, 848780, 883190, 933658, 1009360, 1054130, 1188292, 1204720, 1413104, 1485365, 1686608, 1697560, 1766380, 1867316, 2108260, 2334145, 2376584, 2970730, 3267803, 3395120, 3532760, 3734632, 4216520, 4668290, 4753168, 5941460, 6535606, 7065520, 7469264, 8433040, 9336580, 11882920, 13071212, 16339015, 18673160, 23765840, 26142424, 32678030, 37346320, 52284848, 65356060, 130712120, 261424240]

約数ペア:

[(1, 261424240), (2, 130712120), (4, 65356060), (5, 52284848), (7, 37346320), (8, 32678030), (10, 26142424), (11, 23765840), (14, 18673160), (16, 16339015), (20, 13071212), (22, 11882920), (28, 9336580), (31, 8433040), (35, 7469264), (37, 7065520), (40, 6535606), (44, 5941460), (55, 4753168), (56, 4668290), (62, 4216520), (70, 3734632), (74, 3532760), (77, 3395120), (80, 3267803), (88, 2970730), (110, 2376584), (112, 2334145), (124, 2108260), (140, 1867316), (148, 1766380), (154, 1697560), (155, 1686608), (176, 1485365), (185, 1413104), (217, 1204720), (220, 1188292), (248, 1054130), (259, 1009360), (280, 933658), (296, 883190), (308, 848780), (310, 843304), (341, 766640), (370, 706552), (385, 679024), (407, 642320), (434, 602360), (440, 594146), (496, 527065), (518, 504680), (560, 466829), (592, 441595), (616, 424390), (620, 421652), (682, 383320), (740, 353276), (770, 339512), (814, 321160), (868, 301180), (880, 297073), (1036, 252340), (1085, 240944), (1147, 227920), (1232, 212195), (1240, 210826), (1295, 201872), (1364, 191660), (1369, 190960), (1480, 176638), (1540, 169756), (1628, 160580), (1705, 153328), (1736, 150590), (2035, 128464), (2072, 126170), (2170, 120472), (2294, 113960), (2387, 109520), (2480, 105413), (2590, 100936), (2728, 95830), (2738, 95480), (2849, 91760), (2960, 88319), (3080, 84878), (3256, 80290), (3410, 76664), (3472, 75295), (4070, 64232), (4144, 63085), (4340, 60236), (4588, 56980), (4774, 54760), (5180, 50468), (5456, 47915), (5476, 47740), (5698, 45880), (5735, 45584), (6160, 42439), (6512, 40145), (6820, 38332), (6845, 38192), (8029, 32560), (8140, 32116), (8680, 30118), (9176, 28490), (9548, 27380), (9583, 27280), (10360, 25234), (10952, 23870), (11396, 22940), (11470, 22792), (11935, 21904), (12617, 20720), (13640, 19166), (13690, 19096), (14245, 18352), (15059, 17360), (16058, 16280)]