18474540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43987}}^1$

素因数の和:44006

約数の個数: 48

約数和(自身を含む): 59119872

約数和(自身を除く): 40645332

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, 43987, 87974, 131961, 175948, 219935, 263922, 307909, 439870, 527844, 615818, 659805, 879740, 923727, 1231636, 1319610, 1539545, 1847454, 2639220, 3079090, 3694908, 4618635, 6158180, 9237270, 18474540]

約数ペア:

[(1, 18474540), (2, 9237270), (3, 6158180), (4, 4618635), (5, 3694908), (6, 3079090), (7, 2639220), (10, 1847454), (12, 1539545), (14, 1319610), (15, 1231636), (20, 923727), (21, 879740), (28, 659805), (30, 615818), (35, 527844), (42, 439870), (60, 307909), (70, 263922), (84, 219935), (105, 175948), (140, 131961), (210, 87974), (420, 43987)]