2457290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 4898880

約数和(自身を除く): 2441590

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 251, 445, 502, 890, 979, 1255, 1958, 2510, 2761, 4895, 5522, 9790, 13805, 22339, 27610, 44678, 111695, 223390, 245729, 491458, 1228645, 2457290]

約数ペア:

[(1, 2457290), (2, 1228645), (5, 491458), (10, 245729), (11, 223390), (22, 111695), (55, 44678), (89, 27610), (110, 22339), (178, 13805), (251, 9790), (445, 5522), (502, 4895), (890, 2761), (979, 2510), (1255, 1958)]