19298180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87719}}^1$

素因数の和:87739

約数の個数: 24

約数和(自身を含む): 44210880

約数和(自身を除く): 24912700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87719, 175438, 350876, 438595, 877190, 964909, 1754380, 1929818, 3859636, 4824545, 9649090, 19298180]

約数ペア:

[(1, 19298180), (2, 9649090), (4, 4824545), (5, 3859636), (10, 1929818), (11, 1754380), (20, 964909), (22, 877190), (44, 438595), (55, 350876), (110, 175438), (220, 87719)]