81904988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{23563}}^1$

素因数の和:23657

約数の個数: 24

約数和(自身を含む): 158350080

約数和(自身を除く): 76445092

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 23563, 47126, 94252, 259193, 518386, 1036772, 1861477, 3722954, 7445908, 20476247, 40952494, 81904988]

約数ペア:

[(1, 81904988), (2, 40952494), (4, 20476247), (11, 7445908), (22, 3722954), (44, 1861477), (79, 1036772), (158, 518386), (316, 259193), (869, 94252), (1738, 47126), (3476, 23563)]