20782490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 38673936

約数和(自身を除く): 17891446

約数列:

[1, 2, 5, 10, 41, 82, 173, 205, 293, 346, 410, 586, 865, 1465, 1730, 2930, 7093, 12013, 14186, 24026, 35465, 50689, 60065, 70930, 101378, 120130, 253445, 506890, 2078249, 4156498, 10391245, 20782490]

約数ペア:

[(1, 20782490), (2, 10391245), (5, 4156498), (10, 2078249), (41, 506890), (82, 253445), (173, 120130), (205, 101378), (293, 70930), (346, 60065), (410, 50689), (586, 35465), (865, 24026), (1465, 14186), (1730, 12013), (2930, 7093)]