211720780

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{67427}}^1$

素因数の和:67593

約数の個数: 24

約数和(自身を含む): 447452208

約数和(自身を除く): 235731428

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 67427, 134854, 269708, 337135, 674270, 1348540, 10586039, 21172078, 42344156, 52930195, 105860390, 211720780]

約数ペア:

[(1, 211720780), (2, 105860390), (4, 52930195), (5, 42344156), (10, 21172078), (20, 10586039), (157, 1348540), (314, 674270), (628, 337135), (785, 269708), (1570, 134854), (3140, 67427)]