256217130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218989}}^1$

素因数の和:219015

約数の個数: 48

約数和(自身を含む): 717411240

約数和(自身を除く): 461194110

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 218989, 437978, 656967, 1094945, 1313934, 1970901, 2189890, 2846857, 3284835, 3941802, 5693714, 6569670, 8540571, 9854505, 14234285, 17081142, 19709010, 25621713, 28468570, 42702855, 51243426, 85405710, 128108565, 256217130]

約数ペア:

[(1, 256217130), (2, 128108565), (3, 85405710), (5, 51243426), (6, 42702855), (9, 28468570), (10, 25621713), (13, 19709010), (15, 17081142), (18, 14234285), (26, 9854505), (30, 8540571), (39, 6569670), (45, 5693714), (65, 3941802), (78, 3284835), (90, 2846857), (117, 2189890), (130, 1970901), (195, 1313934), (234, 1094945), (390, 656967), (585, 437978), (1170, 218989)]