81014840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{43093}}^1$

素因数の和:43151

約数の個数: 32

約数和(自身を含む): 186166080

約数和(自身を除く): 105151240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 43093, 86186, 172372, 215465, 344744, 430930, 861860, 1723720, 2025371, 4050742, 8101484, 10126855, 16202968, 20253710, 40507420, 81014840]

約数ペア:

[(1, 81014840), (2, 40507420), (4, 20253710), (5, 16202968), (8, 10126855), (10, 8101484), (20, 4050742), (40, 2025371), (47, 1723720), (94, 861860), (188, 430930), (235, 344744), (376, 215465), (470, 172372), (940, 86186), (1880, 43093)]