19661540

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5147}}^1$

素因数の和:5347

約数の個数: 24

約数和(自身を含む): 41513472

約数和(自身を除く): 21851932

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5147, 10294, 20588, 25735, 51470, 102940, 983077, 1966154, 3932308, 4915385, 9830770, 19661540]

約数ペア:

[(1, 19661540), (2, 9830770), (4, 4915385), (5, 3932308), (10, 1966154), (20, 983077), (191, 102940), (382, 51470), (764, 25735), (955, 20588), (1910, 10294), (3820, 5147)]