38945200

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1987}}^1$

素因数の和:2019

約数の個数: 90

約数和(自身を含む): 108896676

約数和(自身を除く): 69951476

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 1987, 2450, 2800, 3920, 3974, 4900, 7948, 9800, 9935, 13909, 15896, 19600, 19870, 27818, 31792, 39740, 49675, 55636, 69545, 79480, 97363, 99350, 111272, 139090, 158960, 194726, 198700, 222544, 278180, 347725, 389452, 397400, 486815, 556360, 695450, 778904, 794800, 973630, 1112720, 1390900, 1557808, 1947260, 2434075, 2781800, 3894520, 4868150, 5563600, 7789040, 9736300, 19472600, 38945200]

約数ペア:

[(1, 38945200), (2, 19472600), (4, 9736300), (5, 7789040), (7, 5563600), (8, 4868150), (10, 3894520), (14, 2781800), (16, 2434075), (20, 1947260), (25, 1557808), (28, 1390900), (35, 1112720), (40, 973630), (49, 794800), (50, 778904), (56, 695450), (70, 556360), (80, 486815), (98, 397400), (100, 389452), (112, 347725), (140, 278180), (175, 222544), (196, 198700), (200, 194726), (245, 158960), (280, 139090), (350, 111272), (392, 99350), (400, 97363), (490, 79480), (560, 69545), (700, 55636), (784, 49675), (980, 39740), (1225, 31792), (1400, 27818), (1960, 19870), (1987, 19600), (2450, 15896), (2800, 13909), (3920, 9935), (3974, 9800), (4900, 7948)]