1990291245

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2503511}}^1$

素因数の和:2503572

約数の個数: 16

約数和(自身を含む): 3244551552

約数和(自身を除く): 1254260307

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 2503511, 7510533, 12517555, 37552665, 132686083, 398058249, 663430415, 1990291245]

約数ペア:

[(1, 1990291245), (3, 663430415), (5, 398058249), (15, 132686083), (53, 37552665), (159, 12517555), (265, 7510533), (795, 2503511)]