81307905

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{110623}}^1$

素因数の和:110645

約数の個数: 24

約数和(自身を含む): 151333632

約数和(自身を除く): 70025727

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 110623, 331869, 553115, 774361, 1659345, 2323083, 3871805, 5420527, 11615415, 16261581, 27102635, 81307905]

約数ペア:

[(1, 81307905), (3, 27102635), (5, 16261581), (7, 11615415), (15, 5420527), (21, 3871805), (35, 2323083), (49, 1659345), (105, 774361), (147, 553115), (245, 331869), (735, 110623)]