20175996976

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{653}}^1\times {\mathrm{44909}}^1$

素因数の和:45613

約数の個数: 40

約数和(自身を含む): 40062234960

約数和(自身を除く): 19886237984

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 653, 688, 1306, 2612, 5224, 10448, 28079, 44909, 56158, 89818, 112316, 179636, 224632, 359272, 449264, 718544, 1931087, 3862174, 7724348, 15448696, 29325577, 30897392, 58651154, 117302308, 234604616, 469209232, 1260999811, 2521999622, 5043999244, 10087998488, 20175996976]

約数ペア:

[(1, 20175996976), (2, 10087998488), (4, 5043999244), (8, 2521999622), (16, 1260999811), (43, 469209232), (86, 234604616), (172, 117302308), (344, 58651154), (653, 30897392), (688, 29325577), (1306, 15448696), (2612, 7724348), (5224, 3862174), (10448, 1931087), (28079, 718544), (44909, 449264), (56158, 359272), (89818, 224632), (112316, 179636)]