2020019984

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{1884347}}^1$

素因数の和:1884422

約数の個数: 20

約数和(自身を含む): 3972205584

約数和(自身を除く): 1952185600

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 1884347, 3768694, 7537388, 15074776, 30149552, 126251249, 252502498, 505004996, 1010009992, 2020019984]

約数ペア:

[(1, 2020019984), (2, 1010009992), (4, 505004996), (8, 252502498), (16, 126251249), (67, 30149552), (134, 15074776), (268, 7537388), (536, 3768694), (1072, 1884347)]