78845949

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 151252920

約数和(自身を除く): 72406971

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 49, 51, 63, 91, 117, 119, 147, 153, 221, 273, 357, 441, 637, 663, 809, 819, 833, 1071, 1547, 1911, 1989, 2427, 2499, 4641, 5663, 5733, 7281, 7497, 10517, 10829, 13753, 13923, 16989, 31551, 32487, 39641, 41259, 50967, 73619, 94653, 96271, 97461, 118923, 123777, 178789, 220857, 288813, 356769, 515333, 536367, 662571, 673897, 866439, 1251523, 1545999, 1609101, 2021691, 3754569, 4637997, 6065073, 8760661, 11263707, 26281983, 78845949]

約数ペア:

[(1, 78845949), (3, 26281983), (7, 11263707), (9, 8760661), (13, 6065073), (17, 4637997), (21, 3754569), (39, 2021691), (49, 1609101), (51, 1545999), (63, 1251523), (91, 866439), (117, 673897), (119, 662571), (147, 536367), (153, 515333), (221, 356769), (273, 288813), (357, 220857), (441, 178789), (637, 123777), (663, 118923), (809, 97461), (819, 96271), (833, 94653), (1071, 73619), (1547, 50967), (1911, 41259), (1989, 39641), (2427, 32487), (2499, 31551), (4641, 16989), (5663, 13923), (5733, 13753), (7281, 10829), (7497, 10517)]