1981839104

素因数分解:

$2^8\times 7^2\times {\mathrm{157991}}^1$

素因数の和:158021

約数の個数: 54

約数和(自身を含む): 4601832984

約数和(自身を除く): 2619993880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1792, 3136, 6272, 12544, 157991, 315982, 631964, 1105937, 1263928, 2211874, 2527856, 4423748, 5055712, 7741559, 8847496, 10111424, 15483118, 17694992, 20222848, 30966236, 35389984, 40445696, 61932472, 70779968, 123864944, 141559936, 247729888, 283119872, 495459776, 990919552, 1981839104]

約数ペア:

[(1, 1981839104), (2, 990919552), (4, 495459776), (7, 283119872), (8, 247729888), (14, 141559936), (16, 123864944), (28, 70779968), (32, 61932472), (49, 40445696), (56, 35389984), (64, 30966236), (98, 20222848), (112, 17694992), (128, 15483118), (196, 10111424), (224, 8847496), (256, 7741559), (392, 5055712), (448, 4423748), (784, 2527856), (896, 2211874), (1568, 1263928), (1792, 1105937), (3136, 631964), (6272, 315982), (12544, 157991)]