79940140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571001}}^1$

素因数の和:571017

約数の個数: 24

約数和(自身を含む): 191856672

約数和(自身を除く): 111916532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571001, 1142002, 2284004, 2855005, 3997007, 5710010, 7994014, 11420020, 15988028, 19985035, 39970070, 79940140]

約数ペア:

[(1, 79940140), (2, 39970070), (4, 19985035), (5, 15988028), (7, 11420020), (10, 7994014), (14, 5710010), (20, 3997007), (28, 2855005), (35, 2284004), (70, 1142002), (140, 571001)]