90131090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{439}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 189604800

約数和(自身を除く): 99473710

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 419, 439, 490, 838, 878, 2095, 2195, 2933, 3073, 4190, 4390, 5866, 6146, 14665, 15365, 20531, 21511, 29330, 30730, 41062, 43022, 102655, 107555, 183941, 205310, 215110, 367882, 919705, 1287587, 1839410, 2575174, 6437935, 9013109, 12875870, 18026218, 45065545, 90131090]

約数ペア:

[(1, 90131090), (2, 45065545), (5, 18026218), (7, 12875870), (10, 9013109), (14, 6437935), (35, 2575174), (49, 1839410), (70, 1287587), (98, 919705), (245, 367882), (419, 215110), (439, 205310), (490, 183941), (838, 107555), (878, 102655), (2095, 43022), (2195, 41062), (2933, 30730), (3073, 29330), (4190, 21511), (4390, 20531), (5866, 15365), (6146, 14665)]