257845848

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:609

約数の個数: 128

約数和(自身を含む): 731566080

約数和(自身を除く): 473720232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 53, 62, 78, 93, 104, 106, 124, 156, 159, 186, 212, 248, 312, 318, 372, 403, 424, 503, 636, 689, 744, 806, 1006, 1209, 1272, 1378, 1509, 1612, 1643, 2012, 2067, 2418, 2756, 3018, 3224, 3286, 4024, 4134, 4836, 4929, 5512, 6036, 6539, 6572, 8268, 9672, 9858, 12072, 13078, 13144, 15593, 16536, 19617, 19716, 21359, 26156, 26659, 31186, 39234, 39432, 42718, 46779, 52312, 53318, 62372, 64077, 78468, 79977, 85436, 93558, 106636, 124744, 128154, 156936, 159954, 170872, 187116, 202709, 213272, 256308, 319908, 346567, 374232, 405418, 512616, 608127, 639816, 693134, 810836, 826429, 1039701, 1216254, 1386268, 1621672, 1652858, 2079402, 2432508, 2479287, 2772536, 3305716, 4158804, 4865016, 4958574, 6611432, 8317608, 9917148, 10743577, 19834296, 21487154, 32230731, 42974308, 64461462, 85948616, 128922924, 257845848]

約数ペア:

[(1, 257845848), (2, 128922924), (3, 85948616), (4, 64461462), (6, 42974308), (8, 32230731), (12, 21487154), (13, 19834296), (24, 10743577), (26, 9917148), (31, 8317608), (39, 6611432), (52, 4958574), (53, 4865016), (62, 4158804), (78, 3305716), (93, 2772536), (104, 2479287), (106, 2432508), (124, 2079402), (156, 1652858), (159, 1621672), (186, 1386268), (212, 1216254), (248, 1039701), (312, 826429), (318, 810836), (372, 693134), (403, 639816), (424, 608127), (503, 512616), (636, 405418), (689, 374232), (744, 346567), (806, 319908), (1006, 256308), (1209, 213272), (1272, 202709), (1378, 187116), (1509, 170872), (1612, 159954), (1643, 156936), (2012, 128154), (2067, 124744), (2418, 106636), (2756, 93558), (3018, 85436), (3224, 79977), (3286, 78468), (4024, 64077), (4134, 62372), (4836, 53318), (4929, 52312), (5512, 46779), (6036, 42718), (6539, 39432), (6572, 39234), (8268, 31186), (9672, 26659), (9858, 26156), (12072, 21359), (13078, 19716), (13144, 19617), (15593, 16536)]