28699990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23719}}^1$

素因数の和:23748

約数の個数: 24

約数和(自身を含む): 56785680

約数和(自身を除く): 28085690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 23719, 47438, 118595, 237190, 260909, 521818, 1304545, 2609090, 2869999, 5739998, 14349995, 28699990]

約数ペア:

[(1, 28699990), (2, 14349995), (5, 5739998), (10, 2869999), (11, 2609090), (22, 1304545), (55, 521818), (110, 260909), (121, 237190), (242, 118595), (605, 47438), (1210, 23719)]