78891990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{138407}}^1$

素因数の和:138436

約数の個数: 32

約数和(自身を含む): 199307520

約数和(自身を除く): 120415530

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570, 138407, 276814, 415221, 692035, 830442, 1384070, 2076105, 2629733, 4152210, 5259466, 7889199, 13148665, 15778398, 26297330, 39445995, 78891990]

約数ペア:

[(1, 78891990), (2, 39445995), (3, 26297330), (5, 15778398), (6, 13148665), (10, 7889199), (15, 5259466), (19, 4152210), (30, 2629733), (38, 2076105), (57, 1384070), (95, 830442), (114, 692035), (190, 415221), (285, 276814), (570, 138407)]