20433520

素因数分解:

$2^4\times 5^1\times {\mathrm{255419}}^1$

素因数の和:255432

約数の個数: 20

約数和(自身を含む): 47508120

約数和(自身を除く): 27074600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255419, 510838, 1021676, 1277095, 2043352, 2554190, 4086704, 5108380, 10216760, 20433520]

約数ペア:

[(1, 20433520), (2, 10216760), (4, 5108380), (5, 4086704), (8, 2554190), (10, 2043352), (16, 1277095), (20, 1021676), (40, 510838), (80, 255419)]