209933890

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{83639}}^1$

素因数の和:83897

約数の個数: 16

約数和(自身を含む): 379391040

約数和(自身を除く): 169457150

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 83639, 167278, 418195, 836390, 20993389, 41986778, 104966945, 209933890]

約数ペア:

[(1, 209933890), (2, 104966945), (5, 41986778), (10, 20993389), (251, 836390), (502, 418195), (1255, 167278), (2510, 83639)]