81215890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1160227}}^1$

素因数の和:1160241

約数の個数: 16

約数和(自身を含む): 167072832

約数和(自身を除く): 85856942

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1160227, 2320454, 5801135, 8121589, 11602270, 16243178, 40607945, 81215890]

約数ペア:

[(1, 81215890), (2, 40607945), (5, 16243178), (7, 11602270), (10, 8121589), (14, 5801135), (35, 2320454), (70, 1160227)]