64857868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{1319}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 119750400

約数和(自身を除く): 54892532

約数列:

[1, 2, 4, 19, 38, 76, 647, 1294, 1319, 2588, 2638, 5276, 12293, 24586, 25061, 49172, 50122, 100244, 853393, 1706786, 3413572, 16214467, 32428934, 64857868]

約数ペア:

[(1, 64857868), (2, 32428934), (4, 16214467), (19, 3413572), (38, 1706786), (76, 853393), (647, 100244), (1294, 50122), (1319, 49172), (2588, 25061), (2638, 24586), (5276, 12293)]