81664670

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{619}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 149990400

約数和(自身を除く): 68325730

約数列:

[1, 2, 5, 10, 79, 158, 167, 334, 395, 619, 790, 835, 1238, 1670, 3095, 6190, 13193, 26386, 48901, 65965, 97802, 103373, 131930, 206746, 244505, 489010, 516865, 1033730, 8166467, 16332934, 40832335, 81664670]

約数ペア:

[(1, 81664670), (2, 40832335), (5, 16332934), (10, 8166467), (79, 1033730), (158, 516865), (167, 489010), (334, 244505), (395, 206746), (619, 131930), (790, 103373), (835, 97802), (1238, 65965), (1670, 48901), (3095, 26386), (6190, 13193)]