15578080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{1987}}^1$

素因数の和:2016

約数の個数: 72

約数和(自身を含む): 42833448

約数和(自身を除く): 27255368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 1987, 3920, 3974, 7840, 7948, 9935, 13909, 15896, 19870, 27818, 31792, 39740, 55636, 63584, 69545, 79480, 97363, 111272, 139090, 158960, 194726, 222544, 278180, 317920, 389452, 445088, 486815, 556360, 778904, 973630, 1112720, 1557808, 1947260, 2225440, 3115616, 3894520, 7789040, 15578080]

約数ペア:

[(1, 15578080), (2, 7789040), (4, 3894520), (5, 3115616), (7, 2225440), (8, 1947260), (10, 1557808), (14, 1112720), (16, 973630), (20, 778904), (28, 556360), (32, 486815), (35, 445088), (40, 389452), (49, 317920), (56, 278180), (70, 222544), (80, 194726), (98, 158960), (112, 139090), (140, 111272), (160, 97363), (196, 79480), (224, 69545), (245, 63584), (280, 55636), (392, 39740), (490, 31792), (560, 27818), (784, 19870), (980, 15896), (1120, 13909), (1568, 9935), (1960, 7948), (1987, 7840), (3920, 3974)]