18209120

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1559}}^1$

素因数の和:1647

約数の個数: 48

約数和(自身を含む): 43636320

約数和(自身を除く): 25427200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 1559, 2336, 2920, 3118, 5840, 6236, 7795, 11680, 12472, 15590, 24944, 31180, 49888, 62360, 113807, 124720, 227614, 249440, 455228, 569035, 910456, 1138070, 1820912, 2276140, 3641824, 4552280, 9104560, 18209120]

約数ペア:

[(1, 18209120), (2, 9104560), (4, 4552280), (5, 3641824), (8, 2276140), (10, 1820912), (16, 1138070), (20, 910456), (32, 569035), (40, 455228), (73, 249440), (80, 227614), (146, 124720), (160, 113807), (292, 62360), (365, 49888), (584, 31180), (730, 24944), (1168, 15590), (1460, 12472), (1559, 11680), (2336, 7795), (2920, 6236), (3118, 5840)]