121991968

素因数分解:

$2^5\times 7^2\times {\mathrm{77801}}^1$

素因数の和:77825

約数の個数: 36

約数和(自身を含む): 279386982

約数和(自身を除く): 157395014

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 77801, 155602, 311204, 544607, 622408, 1089214, 1244816, 2178428, 2489632, 3812249, 4356856, 7624498, 8713712, 15248996, 17427424, 30497992, 60995984, 121991968]

約数ペア:

[(1, 121991968), (2, 60995984), (4, 30497992), (7, 17427424), (8, 15248996), (14, 8713712), (16, 7624498), (28, 4356856), (32, 3812249), (49, 2489632), (56, 2178428), (98, 1244816), (112, 1089214), (196, 622408), (224, 544607), (392, 311204), (784, 155602), (1568, 77801)]