31328890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{35201}}^1$

素因数の和:35297

約数の個数: 16

約数和(自身を含む): 57027240

約数和(自身を除く): 25698350

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 35201, 70402, 176005, 352010, 3132889, 6265778, 15664445, 31328890]

約数ペア:

[(1, 31328890), (2, 15664445), (5, 6265778), (10, 3132889), (89, 352010), (178, 176005), (445, 70402), (890, 35201)]