81630100

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{7489}}^1$

素因数の和:7612

約数の個数: 36

約数和(自身を含む): 178786300

約数和(自身を除く): 97156200

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 5450, 7489, 10900, 14978, 29956, 37445, 74890, 149780, 187225, 374450, 748900, 816301, 1632602, 3265204, 4081505, 8163010, 16326020, 20407525, 40815050, 81630100]

約数ペア:

[(1, 81630100), (2, 40815050), (4, 20407525), (5, 16326020), (10, 8163010), (20, 4081505), (25, 3265204), (50, 1632602), (100, 816301), (109, 748900), (218, 374450), (436, 187225), (545, 149780), (1090, 74890), (2180, 37445), (2725, 29956), (5450, 14978), (7489, 10900)]