257111520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:553

約数の個数: 192

約数和(自身を含む): 860461056

約数和(自身を除く): 603349536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 37, 40, 48, 60, 62, 74, 80, 93, 96, 111, 120, 124, 148, 155, 160, 185, 186, 222, 240, 248, 296, 310, 370, 372, 444, 465, 467, 480, 496, 555, 592, 620, 740, 744, 888, 930, 934, 992, 1110, 1147, 1184, 1240, 1401, 1480, 1488, 1776, 1860, 1868, 2220, 2294, 2335, 2480, 2802, 2960, 2976, 3441, 3552, 3720, 3736, 4440, 4588, 4670, 4960, 5604, 5735, 5920, 6882, 7005, 7440, 7472, 8880, 9176, 9340, 11208, 11470, 13764, 14010, 14477, 14880, 14944, 17205, 17279, 17760, 18352, 18680, 22416, 22940, 27528, 28020, 28954, 34410, 34558, 36704, 37360, 43431, 44832, 45880, 51837, 55056, 56040, 57908, 68820, 69116, 72385, 74720, 86395, 86862, 91760, 103674, 110112, 112080, 115816, 137640, 138232, 144770, 172790, 173724, 183520, 207348, 217155, 224160, 231632, 259185, 275280, 276464, 289540, 345580, 347448, 414696, 434310, 463264, 518370, 535649, 550560, 552928, 579080, 691160, 694896, 829392, 868620, 1036740, 1071298, 1158160, 1382320, 1389792, 1606947, 1658784, 1737240, 2073480, 2142596, 2316320, 2678245, 2764640, 3213894, 3474480, 4146960, 4285192, 5356490, 6427788, 6948960, 8034735, 8293920, 8570384, 10712980, 12855576, 16069470, 17140768, 21425960, 25711152, 32138940, 42851920, 51422304, 64277880, 85703840, 128555760, 257111520]

約数ペア:

[(1, 257111520), (2, 128555760), (3, 85703840), (4, 64277880), (5, 51422304), (6, 42851920), (8, 32138940), (10, 25711152), (12, 21425960), (15, 17140768), (16, 16069470), (20, 12855576), (24, 10712980), (30, 8570384), (31, 8293920), (32, 8034735), (37, 6948960), (40, 6427788), (48, 5356490), (60, 4285192), (62, 4146960), (74, 3474480), (80, 3213894), (93, 2764640), (96, 2678245), (111, 2316320), (120, 2142596), (124, 2073480), (148, 1737240), (155, 1658784), (160, 1606947), (185, 1389792), (186, 1382320), (222, 1158160), (240, 1071298), (248, 1036740), (296, 868620), (310, 829392), (370, 694896), (372, 691160), (444, 579080), (465, 552928), (467, 550560), (480, 535649), (496, 518370), (555, 463264), (592, 434310), (620, 414696), (740, 347448), (744, 345580), (888, 289540), (930, 276464), (934, 275280), (992, 259185), (1110, 231632), (1147, 224160), (1184, 217155), (1240, 207348), (1401, 183520), (1480, 173724), (1488, 172790), (1776, 144770), (1860, 138232), (1868, 137640), (2220, 115816), (2294, 112080), (2335, 110112), (2480, 103674), (2802, 91760), (2960, 86862), (2976, 86395), (3441, 74720), (3552, 72385), (3720, 69116), (3736, 68820), (4440, 57908), (4588, 56040), (4670, 55056), (4960, 51837), (5604, 45880), (5735, 44832), (5920, 43431), (6882, 37360), (7005, 36704), (7440, 34558), (7472, 34410), (8880, 28954), (9176, 28020), (9340, 27528), (11208, 22940), (11470, 22416), (13764, 18680), (14010, 18352), (14477, 17760), (14880, 17279), (14944, 17205)]