261719625

素因数分解:

$3^1\times 5^3\times {\mathrm{139}}^1\times {\mathrm{5021}}^1$

素因数の和:5178

約数の個数: 32

約数和(自身を含む): 438721920

約数和(自身を除く): 177002295

約数列:

[1, 3, 5, 15, 25, 75, 125, 139, 375, 417, 695, 2085, 3475, 5021, 10425, 15063, 17375, 25105, 52125, 75315, 125525, 376575, 627625, 697919, 1882875, 2093757, 3489595, 10468785, 17447975, 52343925, 87239875, 261719625]

約数ペア:

[(1, 261719625), (3, 87239875), (5, 52343925), (15, 17447975), (25, 10468785), (75, 3489595), (125, 2093757), (139, 1882875), (375, 697919), (417, 627625), (695, 376575), (2085, 125525), (3475, 75315), (5021, 52125), (10425, 25105), (15063, 17375)]