126420980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{129001}}^1$

素因数の和:129024

約数の個数: 36

約数和(自身を含む): 308830788

約数和(自身を除く): 182409808

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 129001, 258002, 516004, 645005, 903007, 1290010, 1806014, 2580020, 3612028, 4515035, 6321049, 9030070, 12642098, 18060140, 25284196, 31605245, 63210490, 126420980]

約数ペア:

[(1, 126420980), (2, 63210490), (4, 31605245), (5, 25284196), (7, 18060140), (10, 12642098), (14, 9030070), (20, 6321049), (28, 4515035), (35, 3612028), (49, 2580020), (70, 1806014), (98, 1290010), (140, 903007), (196, 645005), (245, 516004), (490, 258002), (980, 129001)]