81203135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1787

約数の個数: 32

約数和(自身を含む): 113762880

約数和(自身を除く): 32559745

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 731, 1105, 1709, 2795, 3655, 8545, 9503, 22217, 29053, 47515, 73487, 111085, 145265, 367435, 377689, 955331, 1249279, 1888445, 4776655, 6246395, 16240627, 81203135]

約数ペア:

[(1, 81203135), (5, 16240627), (13, 6246395), (17, 4776655), (43, 1888445), (65, 1249279), (85, 955331), (215, 377689), (221, 367435), (559, 145265), (731, 111085), (1105, 73487), (1709, 47515), (2795, 29053), (3655, 22217), (8545, 9503)]