5145640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 11654280

約数和(自身を除く): 6508640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 653, 788, 985, 1306, 1576, 1970, 2612, 3265, 3940, 5224, 6530, 7880, 13060, 26120, 128641, 257282, 514564, 643205, 1029128, 1286410, 2572820, 5145640]

約数ペア:

[(1, 5145640), (2, 2572820), (4, 1286410), (5, 1029128), (8, 643205), (10, 514564), (20, 257282), (40, 128641), (197, 26120), (394, 13060), (653, 7880), (788, 6530), (985, 5224), (1306, 3940), (1576, 3265), (1970, 2612)]