289644320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{258611}}^1$

素因数の和:258633

約数の個数: 48

約数和(自身を含む): 782042688

約数和(自身を除く): 492398368

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, 258611, 517222, 1034444, 1293055, 1810277, 2068888, 2586110, 3620554, 4137776, 5172220, 7241108, 8275552, 9051385, 10344440, 14482216, 18102770, 20688880, 28964432, 36205540, 41377760, 57928864, 72411080, 144822160, 289644320]

約数ペア:

[(1, 289644320), (2, 144822160), (4, 72411080), (5, 57928864), (7, 41377760), (8, 36205540), (10, 28964432), (14, 20688880), (16, 18102770), (20, 14482216), (28, 10344440), (32, 9051385), (35, 8275552), (40, 7241108), (56, 5172220), (70, 4137776), (80, 3620554), (112, 2586110), (140, 2068888), (160, 1810277), (224, 1293055), (280, 1034444), (560, 517222), (1120, 258611)]