28980420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{69001}}^1$

素因数の和:69020

約数の個数: 48

約数和(自身を含む): 92738688

約数和(自身を除く): 63758268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 69001, 138002, 207003, 276004, 345005, 414006, 483007, 690010, 828012, 966014, 1035015, 1380020, 1449021, 1932028, 2070030, 2415035, 2898042, 4140060, 4830070, 5796084, 7245105, 9660140, 14490210, 28980420]

約数ペア:

[(1, 28980420), (2, 14490210), (3, 9660140), (4, 7245105), (5, 5796084), (6, 4830070), (7, 4140060), (10, 2898042), (12, 2415035), (14, 2070030), (15, 1932028), (20, 1449021), (21, 1380020), (28, 1035015), (30, 966014), (35, 828012), (42, 690010), (60, 483007), (70, 414006), (84, 345005), (105, 276004), (140, 207003), (210, 138002), (420, 69001)]