81857918

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{8861}}^1$

素因数の和:9043

約数の個数: 16

約数和(自身を含む): 127612800

約数和(自身を除く): 45754882

約数列:

[1, 2, 31, 62, 149, 298, 4619, 8861, 9238, 17722, 274691, 549382, 1320289, 2640578, 40928959, 81857918]

約数ペア:

[(1, 81857918), (2, 40928959), (31, 2640578), (62, 1320289), (149, 549382), (298, 274691), (4619, 17722), (8861, 9238)]