209225980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197383}}^1$

素因数の和:197445

約数の個数: 24

約数和(自身を含む): 447666912

約数和(自身を除く): 238440932

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 197383, 394766, 789532, 986915, 1973830, 3947660, 10461299, 20922598, 41845196, 52306495, 104612990, 209225980]

約数ペア:

[(1, 209225980), (2, 104612990), (4, 52306495), (5, 41845196), (10, 20922598), (20, 10461299), (53, 3947660), (106, 1973830), (212, 986915), (265, 789532), (530, 394766), (1060, 197383)]