388074540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{923987}}^1$

素因数の和:924006

約数の個数: 48

約数和(自身を含む): 1241839872

約数和(自身を除く): 853765332

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, 923987, 1847974, 2771961, 3695948, 4619935, 5543922, 6467909, 9239870, 11087844, 12935818, 13859805, 18479740, 19403727, 25871636, 27719610, 32339545, 38807454, 55439220, 64679090, 77614908, 97018635, 129358180, 194037270, 388074540]

約数ペア:

[(1, 388074540), (2, 194037270), (3, 129358180), (4, 97018635), (5, 77614908), (6, 64679090), (7, 55439220), (10, 38807454), (12, 32339545), (14, 27719610), (15, 25871636), (20, 19403727), (21, 18479740), (28, 13859805), (30, 12935818), (35, 11087844), (42, 9239870), (60, 6467909), (70, 5543922), (84, 4619935), (105, 3695948), (140, 2771961), (210, 1847974), (420, 923987)]