20803760

素因数分解:

$2^4\times 5^1\times {\mathrm{260047}}^1$

素因数の和:260060

約数の個数: 20

約数和(自身を含む): 48368928

約数和(自身を除く): 27565168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260047, 520094, 1040188, 1300235, 2080376, 2600470, 4160752, 5200940, 10401880, 20803760]

約数ペア:

[(1, 20803760), (2, 10401880), (4, 5200940), (5, 4160752), (8, 2600470), (10, 2080376), (16, 1300235), (20, 1040188), (40, 520094), (80, 260047)]