19791860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89963}}^1$

素因数の和:89983

約数の個数: 24

約数和(自身を含む): 45341856

約数和(自身を除く): 25549996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89963, 179926, 359852, 449815, 899630, 989593, 1799260, 1979186, 3958372, 4947965, 9895930, 19791860]

約数ペア:

[(1, 19791860), (2, 9895930), (4, 4947965), (5, 3958372), (10, 1979186), (11, 1799260), (20, 989593), (22, 899630), (44, 449815), (55, 359852), (110, 179926), (220, 89963)]