261529920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1279}}^1$

素因数の和:1373

約数の個数: 168

約数和(自身を含む): 912936960

約数和(自身を除く): 651407040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 192, 213, 240, 284, 288, 320, 355, 360, 426, 480, 568, 576, 639, 710, 720, 852, 960, 1065, 1136, 1278, 1279, 1420, 1440, 1704, 2130, 2272, 2556, 2558, 2840, 2880, 3195, 3408, 3837, 4260, 4544, 5112, 5116, 5680, 6390, 6395, 6816, 7674, 8520, 10224, 10232, 11360, 11511, 12780, 12790, 13632, 15348, 17040, 19185, 20448, 20464, 22720, 23022, 25560, 25580, 30696, 34080, 38370, 40896, 40928, 46044, 51120, 51160, 57555, 61392, 68160, 76740, 81856, 90809, 92088, 102240, 102320, 115110, 122784, 153480, 181618, 184176, 204480, 204640, 230220, 245568, 272427, 306960, 363236, 368352, 409280, 454045, 460440, 544854, 613920, 726472, 736704, 817281, 908090, 920880, 1089708, 1227840, 1362135, 1452944, 1634562, 1816180, 1841760, 2179416, 2724270, 2905888, 3269124, 3632360, 3683520, 4086405, 4358832, 5448540, 5811776, 6538248, 7264720, 8172810, 8717664, 10897080, 13076496, 14529440, 16345620, 17435328, 21794160, 26152992, 29058880, 32691240, 43588320, 52305984, 65382480, 87176640, 130764960, 261529920]

約数ペア:

[(1, 261529920), (2, 130764960), (3, 87176640), (4, 65382480), (5, 52305984), (6, 43588320), (8, 32691240), (9, 29058880), (10, 26152992), (12, 21794160), (15, 17435328), (16, 16345620), (18, 14529440), (20, 13076496), (24, 10897080), (30, 8717664), (32, 8172810), (36, 7264720), (40, 6538248), (45, 5811776), (48, 5448540), (60, 4358832), (64, 4086405), (71, 3683520), (72, 3632360), (80, 3269124), (90, 2905888), (96, 2724270), (120, 2179416), (142, 1841760), (144, 1816180), (160, 1634562), (180, 1452944), (192, 1362135), (213, 1227840), (240, 1089708), (284, 920880), (288, 908090), (320, 817281), (355, 736704), (360, 726472), (426, 613920), (480, 544854), (568, 460440), (576, 454045), (639, 409280), (710, 368352), (720, 363236), (852, 306960), (960, 272427), (1065, 245568), (1136, 230220), (1278, 204640), (1279, 204480), (1420, 184176), (1440, 181618), (1704, 153480), (2130, 122784), (2272, 115110), (2556, 102320), (2558, 102240), (2840, 92088), (2880, 90809), (3195, 81856), (3408, 76740), (3837, 68160), (4260, 61392), (4544, 57555), (5112, 51160), (5116, 51120), (5680, 46044), (6390, 40928), (6395, 40896), (6816, 38370), (7674, 34080), (8520, 30696), (10224, 25580), (10232, 25560), (11360, 23022), (11511, 22720), (12780, 20464), (12790, 20448), (13632, 19185), (15348, 17040)]