256121502

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10909}}^1$

素因数の和:10977

約数の個数: 64

約数和(自身を含む): 645173760

約数和(自身を除く): 389052258

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 43, 78, 86, 91, 129, 182, 258, 273, 301, 546, 559, 602, 903, 1118, 1677, 1806, 3354, 3913, 7826, 10909, 11739, 21818, 23478, 32727, 65454, 76363, 141817, 152726, 229089, 283634, 425451, 458178, 469087, 850902, 938174, 992719, 1407261, 1985438, 2814522, 2978157, 3283609, 5956314, 6098131, 6567218, 9850827, 12196262, 18294393, 19701654, 36588786, 42686917, 85373834, 128060751, 256121502]

約数ペア:

[(1, 256121502), (2, 128060751), (3, 85373834), (6, 42686917), (7, 36588786), (13, 19701654), (14, 18294393), (21, 12196262), (26, 9850827), (39, 6567218), (42, 6098131), (43, 5956314), (78, 3283609), (86, 2978157), (91, 2814522), (129, 1985438), (182, 1407261), (258, 992719), (273, 938174), (301, 850902), (546, 469087), (559, 458178), (602, 425451), (903, 283634), (1118, 229089), (1677, 152726), (1806, 141817), (3354, 76363), (3913, 65454), (7826, 32727), (10909, 23478), (11739, 21818)]