28898975

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:816

約数の個数: 36

約数和(自身を含む): 43086528

約数和(自身を除く): 14187553

約数列:

[1, 5, 7, 25, 31, 35, 49, 155, 175, 217, 245, 761, 775, 1085, 1225, 1519, 3805, 5327, 5425, 7595, 19025, 23591, 26635, 37289, 37975, 117955, 133175, 165137, 186445, 589775, 825685, 932225, 1155959, 4128425, 5779795, 28898975]

約数ペア:

[(1, 28898975), (5, 5779795), (7, 4128425), (25, 1155959), (31, 932225), (35, 825685), (49, 589775), (155, 186445), (175, 165137), (217, 133175), (245, 117955), (761, 37975), (775, 37289), (1085, 26635), (1225, 23591), (1519, 19025), (3805, 7595), (5327, 5425)]