81485236

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{13411}}^1$

素因数の和:13460

約数の個数: 36

約数和(自身を含む): 171244416

約数和(自身を除く): 89759180

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 6076, 13411, 26822, 53644, 93877, 187754, 375508, 415741, 657139, 831482, 1314278, 1662964, 2628556, 2910187, 5820374, 11640748, 20371309, 40742618, 81485236]

約数ペア:

[(1, 81485236), (2, 40742618), (4, 20371309), (7, 11640748), (14, 5820374), (28, 2910187), (31, 2628556), (49, 1662964), (62, 1314278), (98, 831482), (124, 657139), (196, 415741), (217, 375508), (434, 187754), (868, 93877), (1519, 53644), (3038, 26822), (6076, 13411)]