1277882608

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{971}}^1\times {\mathrm{991}}^1$

素因数の和:2053

約数の個数: 40

約数和(自身を含む): 2510839296

約数和(自身を除く): 1232956688

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 971, 991, 1328, 1942, 1982, 3884, 3964, 7768, 7928, 15536, 15856, 80593, 82253, 161186, 164506, 322372, 329012, 644744, 658024, 962261, 1289488, 1316048, 1924522, 3849044, 7698088, 15396176, 79867663, 159735326, 319470652, 638941304, 1277882608]

約数ペア:

[(1, 1277882608), (2, 638941304), (4, 319470652), (8, 159735326), (16, 79867663), (83, 15396176), (166, 7698088), (332, 3849044), (664, 1924522), (971, 1316048), (991, 1289488), (1328, 962261), (1942, 658024), (1982, 644744), (3884, 329012), (3964, 322372), (7768, 164506), (7928, 161186), (15536, 82253), (15856, 80593)]