77920654

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1\times {\mathrm{283}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 136429056

約数和(自身を除く): 58508402

約数列:

[1, 2, 7, 14, 71, 142, 277, 283, 497, 554, 566, 994, 1939, 1981, 3878, 3962, 19667, 20093, 39334, 40186, 78391, 137669, 140651, 156782, 275338, 281302, 548737, 1097474, 5565761, 11131522, 38960327, 77920654]

約数ペア:

[(1, 77920654), (2, 38960327), (7, 11131522), (14, 5565761), (71, 1097474), (142, 548737), (277, 281302), (283, 275338), (497, 156782), (554, 140651), (566, 137669), (994, 78391), (1939, 40186), (1981, 39334), (3878, 20093), (3962, 19667)]