15559940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 36033984

約数和(自身を除く): 20474044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 110, 214, 220, 428, 535, 661, 1070, 1177, 1322, 2140, 2354, 2644, 3305, 4708, 5885, 6610, 7271, 11770, 13220, 14542, 23540, 29084, 36355, 70727, 72710, 141454, 145420, 282908, 353635, 707270, 777997, 1414540, 1555994, 3111988, 3889985, 7779970, 15559940]

約数ペア:

[(1, 15559940), (2, 7779970), (4, 3889985), (5, 3111988), (10, 1555994), (11, 1414540), (20, 777997), (22, 707270), (44, 353635), (55, 282908), (107, 145420), (110, 141454), (214, 72710), (220, 70727), (428, 36355), (535, 29084), (661, 23540), (1070, 14542), (1177, 13220), (1322, 11770), (2140, 7271), (2354, 6610), (2644, 5885), (3305, 4708)]