20412950

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7703}}^1$

素因数の和:7768

約数の個数: 24

約数和(自身を含む): 38689488

約数和(自身を除く): 18276538

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 7703, 15406, 38515, 77030, 192575, 385150, 408259, 816518, 2041295, 4082590, 10206475, 20412950]

約数ペア:

[(1, 20412950), (2, 10206475), (5, 4082590), (10, 2041295), (25, 816518), (50, 408259), (53, 385150), (106, 192575), (265, 77030), (530, 38515), (1325, 15406), (2650, 7703)]