25252825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 34945680

約数和(自身を除く): 9692855

約数列:

[1, 5, 13, 25, 43, 65, 139, 169, 215, 325, 559, 695, 845, 1075, 1807, 2795, 3475, 4225, 5977, 7267, 9035, 13975, 23491, 29885, 36335, 45175, 77701, 117455, 149425, 181675, 388505, 587275, 1010113, 1942525, 5050565, 25252825]

約数ペア:

[(1, 25252825), (5, 5050565), (13, 1942525), (25, 1010113), (43, 587275), (65, 388505), (139, 181675), (169, 149425), (215, 117455), (325, 77701), (559, 45175), (695, 36335), (845, 29885), (1075, 23491), (1807, 13975), (2795, 9035), (3475, 7267), (4225, 5977)]