81971297968

素因数分解:

$2^4\times 7^3\times {\mathrm{3823}}^1\times {\mathrm{3907}}^1$

素因数の和:7759

約数の個数: 80

約数和(自身を含む): 185307980800

約数和(自身を除く): 103336682832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3823, 3907, 5488, 7646, 7814, 15292, 15628, 26761, 27349, 30584, 31256, 53522, 54698, 61168, 62512, 107044, 109396, 187327, 191443, 214088, 218792, 374654, 382886, 428176, 437584, 749308, 765772, 1311289, 1340101, 1498616, 1531544, 2622578, 2680202, 2997232, 3063088, 5245156, 5360404, 10490312, 10720808, 14936461, 20980624, 21441616, 29872922, 59745844, 104555227, 119491688, 209110454, 238983376, 418220908, 731886589, 836441816, 1463773178, 1672883632, 2927546356, 5123206123, 5855092712, 10246412246, 11710185424, 20492824492, 40985648984, 81971297968]

約数ペア:

[(1, 81971297968), (2, 40985648984), (4, 20492824492), (7, 11710185424), (8, 10246412246), (14, 5855092712), (16, 5123206123), (28, 2927546356), (49, 1672883632), (56, 1463773178), (98, 836441816), (112, 731886589), (196, 418220908), (343, 238983376), (392, 209110454), (686, 119491688), (784, 104555227), (1372, 59745844), (2744, 29872922), (3823, 21441616), (3907, 20980624), (5488, 14936461), (7646, 10720808), (7814, 10490312), (15292, 5360404), (15628, 5245156), (26761, 3063088), (27349, 2997232), (30584, 2680202), (31256, 2622578), (53522, 1531544), (54698, 1498616), (61168, 1340101), (62512, 1311289), (107044, 765772), (109396, 749308), (187327, 437584), (191443, 428176), (214088, 382886), (218792, 374654)]