320425140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{762917}}^1$

素因数の和:762936

約数の個数: 48

約数和(自身を含む): 1025361792

約数和(自身を除く): 704936652

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, 762917, 1525834, 2288751, 3051668, 3814585, 4577502, 5340419, 7629170, 9155004, 10680838, 11443755, 15258340, 16021257, 21361676, 22887510, 26702095, 32042514, 45775020, 53404190, 64085028, 80106285, 106808380, 160212570, 320425140]

約数ペア:

[(1, 320425140), (2, 160212570), (3, 106808380), (4, 80106285), (5, 64085028), (6, 53404190), (7, 45775020), (10, 32042514), (12, 26702095), (14, 22887510), (15, 21361676), (20, 16021257), (21, 15258340), (28, 11443755), (30, 10680838), (35, 9155004), (42, 7629170), (60, 5340419), (70, 4577502), (84, 3814585), (105, 3051668), (140, 2288751), (210, 1525834), (420, 762917)]