20881296

素因数分解:

$2^4\times 3^2\times {\mathrm{145009}}^1$

素因数の和:145023

約数の個数: 30

約数和(自身を含む): 58439030

約数和(自身を除く): 37557734

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145009, 290018, 435027, 580036, 870054, 1160072, 1305081, 1740108, 2320144, 2610162, 3480216, 5220324, 6960432, 10440648, 20881296]

約数ペア:

[(1, 20881296), (2, 10440648), (3, 6960432), (4, 5220324), (6, 3480216), (8, 2610162), (9, 2320144), (12, 1740108), (16, 1305081), (18, 1160072), (24, 870054), (36, 580036), (48, 435027), (72, 290018), (144, 145009)]