54321990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{1810733}}^1$

素因数の和:1810743

約数の個数: 16

約数和(自身を含む): 130372848

約数和(自身を除く): 76050858

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 1810733, 3621466, 5432199, 9053665, 10864398, 18107330, 27160995, 54321990]

約数ペア:

[(1, 54321990), (2, 27160995), (3, 18107330), (5, 10864398), (6, 9053665), (10, 5432199), (15, 3621466), (30, 1810733)]