19980690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{666023}}^1$

素因数の和:666033

約数の個数: 16

約数和(自身を含む): 47953728

約数和(自身を除く): 27973038

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 666023, 1332046, 1998069, 3330115, 3996138, 6660230, 9990345, 19980690]

約数ペア:

[(1, 19980690), (2, 9990345), (3, 6660230), (5, 3996138), (6, 3330115), (10, 1998069), (15, 1332046), (30, 666023)]