205380140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1467001}}^1$

素因数の和:1467017

約数の個数: 24

約数和(自身を含む): 492912672

約数和(自身を除く): 287532532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1467001, 2934002, 5868004, 7335005, 10269007, 14670010, 20538014, 29340020, 41076028, 51345035, 102690070, 205380140]

約数ペア:

[(1, 205380140), (2, 102690070), (4, 51345035), (5, 41076028), (7, 29340020), (10, 20538014), (14, 14670010), (20, 10269007), (28, 7335005), (35, 5868004), (70, 2934002), (140, 1467001)]