71319860

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{15991}}^1$

素因数の和:16223

約数の個数: 24

約数和(自身を含む): 150452736

約数和(自身を除く): 79132876

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 15991, 31982, 63964, 79955, 159910, 319820, 3565993, 7131986, 14263972, 17829965, 35659930, 71319860]

約数ペア:

[(1, 71319860), (2, 35659930), (4, 17829965), (5, 14263972), (10, 7131986), (20, 3565993), (223, 319820), (446, 159910), (892, 79955), (1115, 63964), (2230, 31982), (4460, 15991)]