256462227

素因数分解:

$3^3\times 7^2\times {\mathrm{149}}^1\times {\mathrm{1301}}^1$

素因数の和:1473

約数の個数: 48

約数和(自身を含む): 445284000

約数和(自身を除く): 188821773

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 149, 189, 441, 447, 1043, 1301, 1323, 1341, 3129, 3903, 4023, 7301, 9107, 9387, 11709, 21903, 27321, 28161, 35127, 63749, 65709, 81963, 191247, 193849, 197127, 245889, 573741, 581547, 1356943, 1721223, 1744641, 4070829, 5233923, 9498601, 12212487, 28495803, 36637461, 85487409, 256462227]

約数ペア:

[(1, 256462227), (3, 85487409), (7, 36637461), (9, 28495803), (21, 12212487), (27, 9498601), (49, 5233923), (63, 4070829), (147, 1744641), (149, 1721223), (189, 1356943), (441, 581547), (447, 573741), (1043, 245889), (1301, 197127), (1323, 193849), (1341, 191247), (3129, 81963), (3903, 65709), (4023, 63749), (7301, 35127), (9107, 28161), (9387, 27321), (11709, 21903)]