20177860

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1217}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 42459480

約数和(自身を除く): 22281620

約数列:

[1, 2, 4, 5, 10, 20, 829, 1217, 1658, 2434, 3316, 4145, 4868, 6085, 8290, 12170, 16580, 24340, 1008893, 2017786, 4035572, 5044465, 10088930, 20177860]

約数ペア:

[(1, 20177860), (2, 10088930), (4, 5044465), (5, 4035572), (10, 2017786), (20, 1008893), (829, 24340), (1217, 16580), (1658, 12170), (2434, 8290), (3316, 6085), (4145, 4868)]