66980788

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{12143}}^1$

素因数の和:12351

約数の個数: 24

約数和(自身を含む): 134652672

約数和(自身を除く): 67671884

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 5516, 12143, 24286, 48572, 85001, 170002, 340004, 2392171, 4784342, 9568684, 16745197, 33490394, 66980788]

約数ペア:

[(1, 66980788), (2, 33490394), (4, 16745197), (7, 9568684), (14, 4784342), (28, 2392171), (197, 340004), (394, 170002), (788, 85001), (1379, 48572), (2758, 24286), (5516, 12143)]