20129036

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{491}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 36382416

約数和(自身を除く): 16253380

約数列:

[1, 2, 4, 37, 74, 148, 277, 491, 554, 982, 1108, 1964, 10249, 18167, 20498, 36334, 40996, 72668, 136007, 272014, 544028, 5032259, 10064518, 20129036]

約数ペア:

[(1, 20129036), (2, 10064518), (4, 5032259), (37, 544028), (74, 272014), (148, 136007), (277, 72668), (491, 40996), (554, 36334), (982, 20498), (1108, 18167), (1964, 10249)]