520055560

素因数分解:

$2^3\times 5^1\times {\mathrm{13001389}}^1$

素因数の和:13001400

約数の個数: 16

約数和(自身を含む): 1170125100

約数和(自身を除く): 650069540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13001389, 26002778, 52005556, 65006945, 104011112, 130013890, 260027780, 520055560]

約数ペア:

[(1, 520055560), (2, 260027780), (4, 130013890), (5, 104011112), (8, 65006945), (10, 52005556), (20, 26002778), (40, 13001389)]