81053890

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{8179}}^1$

素因数の和:9177

約数の個数: 16

約数和(自身を含む): 146062080

約数和(自身を除く): 65008190

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 8179, 9910, 16358, 40895, 81790, 8105389, 16210778, 40526945, 81053890]

約数ペア:

[(1, 81053890), (2, 40526945), (5, 16210778), (10, 8105389), (991, 81790), (1982, 40895), (4955, 16358), (8179, 9910)]