256462011

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 426746880

約数和(自身を除く): 170284869

約数列:

[1, 3, 9, 13, 27, 39, 41, 71, 117, 123, 213, 251, 351, 369, 533, 639, 753, 923, 1107, 1599, 1917, 2259, 2769, 2911, 3263, 4797, 6777, 8307, 8733, 9789, 10291, 14391, 17821, 24921, 26199, 29367, 30873, 37843, 53463, 78597, 88101, 92619, 113529, 133783, 160389, 231673, 277857, 340587, 401349, 481167, 695019, 730661, 1021761, 1204047, 2085057, 2191983, 3612141, 6255171, 6575949, 9498593, 19727847, 28495779, 85487337, 256462011]

約数ペア:

[(1, 256462011), (3, 85487337), (9, 28495779), (13, 19727847), (27, 9498593), (39, 6575949), (41, 6255171), (71, 3612141), (117, 2191983), (123, 2085057), (213, 1204047), (251, 1021761), (351, 730661), (369, 695019), (533, 481167), (639, 401349), (753, 340587), (923, 277857), (1107, 231673), (1599, 160389), (1917, 133783), (2259, 113529), (2769, 92619), (2911, 88101), (3263, 78597), (4797, 53463), (6777, 37843), (8307, 30873), (8733, 29367), (9789, 26199), (10291, 24921), (14391, 17821)]