19951760

素因数分解:

$2^4\times 5^1\times {\mathrm{249397}}^1$

素因数の和:249410

約数の個数: 20

約数和(自身を含む): 46388028

約数和(自身を除く): 26436268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 249397, 498794, 997588, 1246985, 1995176, 2493970, 3990352, 4987940, 9975880, 19951760]

約数ペア:

[(1, 19951760), (2, 9975880), (4, 4987940), (5, 3990352), (8, 2493970), (10, 1995176), (16, 1246985), (20, 997588), (40, 498794), (80, 249397)]