243676375

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 320246784

約数和(自身を除く): 76570409

約数列:

[1, 5, 23, 25, 115, 125, 131, 575, 647, 655, 2875, 3013, 3235, 3275, 14881, 15065, 16175, 16375, 74405, 75325, 80875, 84757, 372025, 376625, 423785, 1860125, 1949411, 2118925, 9747055, 10594625, 48735275, 243676375]

約数ペア:

[(1, 243676375), (5, 48735275), (23, 10594625), (25, 9747055), (115, 2118925), (125, 1949411), (131, 1860125), (575, 423785), (647, 376625), (655, 372025), (2875, 84757), (3013, 80875), (3235, 75325), (3275, 74405), (14881, 16375), (15065, 16175)]