208195760

素因数分解:

$2^4\times 5^1\times {\mathrm{2602447}}^1$

素因数の和:2602460

約数の個数: 20

約数和(自身を含む): 484055328

約数和(自身を除く): 275859568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2602447, 5204894, 10409788, 13012235, 20819576, 26024470, 41639152, 52048940, 104097880, 208195760]

約数ペア:

[(1, 208195760), (2, 104097880), (4, 52048940), (5, 41639152), (8, 26024470), (10, 20819576), (16, 13012235), (20, 10409788), (40, 5204894), (80, 2602447)]