99979990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{908909}}^1$

素因数の和:908927

約数の個数: 16

約数和(自身を含む): 196324560

約数和(自身を除く): 96344570

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 908909, 1817818, 4544545, 9089090, 9997999, 19995998, 49989995, 99979990]

約数ペア:

[(1, 99979990), (2, 49989995), (5, 19995998), (10, 9997999), (11, 9089090), (22, 4544545), (55, 1817818), (110, 908909)]