28897120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25801}}^1$

素因数の和:25823

約数の個数: 48

約数和(自身を含む): 78025248

約数和(自身を除く): 49128128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25801, 51602, 103204, 129005, 180607, 206408, 258010, 361214, 412816, 516020, 722428, 825632, 903035, 1032040, 1444856, 1806070, 2064080, 2889712, 3612140, 4128160, 5779424, 7224280, 14448560, 28897120]

約数ペア:

[(1, 28897120), (2, 14448560), (4, 7224280), (5, 5779424), (7, 4128160), (8, 3612140), (10, 2889712), (14, 2064080), (16, 1806070), (20, 1444856), (28, 1032040), (32, 903035), (35, 825632), (40, 722428), (56, 516020), (70, 412816), (80, 361214), (112, 258010), (140, 206408), (160, 180607), (224, 129005), (280, 103204), (560, 51602), (1120, 25801)]