81690875

素因数分解:

$5^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1049}}^1$

素因数の和:1160

約数の個数: 32

約数和(自身を含む): 117936000

約数和(自身を除く): 36245125

約数列:

[1, 5, 7, 25, 35, 89, 125, 175, 445, 623, 875, 1049, 2225, 3115, 5245, 7343, 11125, 15575, 26225, 36715, 77875, 93361, 131125, 183575, 466805, 653527, 917875, 2334025, 3267635, 11670125, 16338175, 81690875]

約数ペア:

[(1, 81690875), (5, 16338175), (7, 11670125), (25, 3267635), (35, 2334025), (89, 917875), (125, 653527), (175, 466805), (445, 183575), (623, 131125), (875, 93361), (1049, 77875), (2225, 36715), (3115, 26225), (5245, 15575), (7343, 11125)]