261137520010

素因数分解:

$2^1\times 5^1\times {\mathrm{16901}}^1\times {\mathrm{1545101}}^1$

素因数の和:1562009

約数の個数: 16

約数和(自身を含む): 470075652072

約数和(自身を除く): 208938132062

約数列:

[1, 2, 5, 10, 16901, 33802, 84505, 169010, 1545101, 3090202, 7725505, 15451010, 26113752001, 52227504002, 130568760005, 261137520010]

約数ペア:

[(1, 261137520010), (2, 130568760005), (5, 52227504002), (10, 26113752001), (16901, 15451010), (33802, 7725505), (84505, 3090202), (169010, 1545101)]