399630840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{475751}}^1$

素因数の和:475772

約数の個数: 64

約数和(自身を含む): 1370165760

約数和(自身を除く): 970534920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 475751, 951502, 1427253, 1903004, 2378755, 2854506, 3330257, 3806008, 4757510, 5709012, 6660514, 7136265, 9515020, 9990771, 11418024, 13321028, 14272530, 16651285, 19030040, 19981542, 26642056, 28545060, 33302570, 39963084, 49953855, 57090120, 66605140, 79926168, 99907710, 133210280, 199815420, 399630840]

約数ペア:

[(1, 399630840), (2, 199815420), (3, 133210280), (4, 99907710), (5, 79926168), (6, 66605140), (7, 57090120), (8, 49953855), (10, 39963084), (12, 33302570), (14, 28545060), (15, 26642056), (20, 19981542), (21, 19030040), (24, 16651285), (28, 14272530), (30, 13321028), (35, 11418024), (40, 9990771), (42, 9515020), (56, 7136265), (60, 6660514), (70, 5709012), (84, 4757510), (105, 3806008), (120, 3330257), (140, 2854506), (168, 2378755), (210, 1903004), (280, 1427253), (420, 951502), (840, 475751)]