81306950

素因数分解:

$2^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{3881}}^1$

素因数の和:4312

約数の個数: 24

約数和(自身を含む): 151630920

約数和(自身を除く): 70323970

約数列:

[1, 2, 5, 10, 25, 50, 419, 838, 2095, 3881, 4190, 7762, 10475, 19405, 20950, 38810, 97025, 194050, 1626139, 3252278, 8130695, 16261390, 40653475, 81306950]

約数ペア:

[(1, 81306950), (2, 40653475), (5, 16261390), (10, 8130695), (25, 3252278), (50, 1626139), (419, 194050), (838, 97025), (2095, 38810), (3881, 20950), (4190, 19405), (7762, 10475)]