256884858

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2521}}^1$

素因数の和:2589

約数の個数: 80

約数和(自身を含む): 626192424

約数和(自身を除く): 369307566

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 37, 51, 54, 74, 81, 102, 111, 153, 162, 222, 306, 333, 459, 629, 666, 918, 999, 1258, 1377, 1887, 1998, 2521, 2754, 2997, 3774, 5042, 5661, 5994, 7563, 11322, 15126, 16983, 22689, 33966, 42857, 45378, 50949, 68067, 85714, 93277, 101898, 128571, 136134, 186554, 204201, 257142, 279831, 385713, 408402, 559662, 771426, 839493, 1157139, 1585709, 1678986, 2314278, 2518479, 3171418, 3471417, 4757127, 5036958, 6942834, 7555437, 9514254, 14271381, 15110874, 28542762, 42814143, 85628286, 128442429, 256884858]

約数ペア:

[(1, 256884858), (2, 128442429), (3, 85628286), (6, 42814143), (9, 28542762), (17, 15110874), (18, 14271381), (27, 9514254), (34, 7555437), (37, 6942834), (51, 5036958), (54, 4757127), (74, 3471417), (81, 3171418), (102, 2518479), (111, 2314278), (153, 1678986), (162, 1585709), (222, 1157139), (306, 839493), (333, 771426), (459, 559662), (629, 408402), (666, 385713), (918, 279831), (999, 257142), (1258, 204201), (1377, 186554), (1887, 136134), (1998, 128571), (2521, 101898), (2754, 93277), (2997, 85714), (3774, 68067), (5042, 50949), (5661, 45378), (5994, 42857), (7563, 33966), (11322, 22689), (15126, 16983)]