212660980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{217001}}^1$

素因数の和:217024

約数の個数: 36

約数和(自身を含む): 519502788

約数和(自身を除く): 306841808

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 217001, 434002, 868004, 1085005, 1519007, 2170010, 3038014, 4340020, 6076028, 7595035, 10633049, 15190070, 21266098, 30380140, 42532196, 53165245, 106330490, 212660980]

約数ペア:

[(1, 212660980), (2, 106330490), (4, 53165245), (5, 42532196), (7, 30380140), (10, 21266098), (14, 15190070), (20, 10633049), (28, 7595035), (35, 6076028), (49, 4340020), (70, 3038014), (98, 2170010), (140, 1519007), (196, 1085005), (245, 868004), (490, 434002), (980, 217001)]