387804555280

素因数分解:

$2^4\times 5^1\times {\mathrm{4847556941}}^1$

素因数の和:4847556954

約数の個数: 20

約数和(自身を含む): 901645591212

約数和(自身を除く): 513841035932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4847556941, 9695113882, 19390227764, 24237784705, 38780455528, 48475569410, 77560911056, 96951138820, 193902277640, 387804555280]

約数ペア:

[(1, 387804555280), (2, 193902277640), (4, 96951138820), (5, 77560911056), (8, 48475569410), (10, 38780455528), (16, 24237784705), (20, 19390227764), (40, 9695113882), (80, 4847556941)]