142800140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1020001}}^1$

素因数の和:1020017

約数の個数: 24

約数和(自身を含む): 342720672

約数和(自身を除く): 199920532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1020001, 2040002, 4080004, 5100005, 7140007, 10200010, 14280014, 20400020, 28560028, 35700035, 71400070, 142800140]

約数ペア:

[(1, 142800140), (2, 71400070), (4, 35700035), (5, 28560028), (7, 20400020), (10, 14280014), (14, 10200010), (20, 7140007), (28, 5100005), (35, 4080004), (70, 2040002), (140, 1020001)]