1278841984

素因数分解:

$2^7\times 7^2\times {\mathrm{203897}}^1$

素因数の和:203925

約数の個数: 48

約数和(自身を含む): 2963657430

約数和(自身を除く): 1684815446

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 6272, 203897, 407794, 815588, 1427279, 1631176, 2854558, 3262352, 5709116, 6524704, 9990953, 11418232, 13049408, 19981906, 22836464, 26098816, 39963812, 45672928, 79927624, 91345856, 159855248, 182691712, 319710496, 639420992, 1278841984]

約数ペア:

[(1, 1278841984), (2, 639420992), (4, 319710496), (7, 182691712), (8, 159855248), (14, 91345856), (16, 79927624), (28, 45672928), (32, 39963812), (49, 26098816), (56, 22836464), (64, 19981906), (98, 13049408), (112, 11418232), (128, 9990953), (196, 6524704), (224, 5709116), (392, 3262352), (448, 2854558), (784, 1631176), (896, 1427279), (1568, 815588), (3136, 407794), (6272, 203897)]