77171540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{653}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 171400320

約数和(自身を除く): 94228780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 311, 380, 622, 653, 1244, 1306, 1555, 2612, 3110, 3265, 5909, 6220, 6530, 11818, 12407, 13060, 23636, 24814, 29545, 49628, 59090, 62035, 118180, 124070, 203083, 248140, 406166, 812332, 1015415, 2030830, 3858577, 4061660, 7717154, 15434308, 19292885, 38585770, 77171540]

約数ペア:

[(1, 77171540), (2, 38585770), (4, 19292885), (5, 15434308), (10, 7717154), (19, 4061660), (20, 3858577), (38, 2030830), (76, 1015415), (95, 812332), (190, 406166), (311, 248140), (380, 203083), (622, 124070), (653, 118180), (1244, 62035), (1306, 59090), (1555, 49628), (2612, 29545), (3110, 24814), (3265, 23636), (5909, 13060), (6220, 12407), (6530, 11818)]