19549040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4987}}^1$

素因数の和:5014

約数の個数: 60

約数和(自身を含む): 52882776

約数和(自身を除く): 33333736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4987, 9974, 19948, 24935, 34909, 39896, 49870, 69818, 79792, 99740, 139636, 174545, 199480, 244363, 279272, 349090, 398960, 488726, 558544, 698180, 977452, 1221815, 1396360, 1954904, 2443630, 2792720, 3909808, 4887260, 9774520, 19549040]

約数ペア:

[(1, 19549040), (2, 9774520), (4, 4887260), (5, 3909808), (7, 2792720), (8, 2443630), (10, 1954904), (14, 1396360), (16, 1221815), (20, 977452), (28, 698180), (35, 558544), (40, 488726), (49, 398960), (56, 349090), (70, 279272), (80, 244363), (98, 199480), (112, 174545), (140, 139636), (196, 99740), (245, 79792), (280, 69818), (392, 49870), (490, 39896), (560, 34909), (784, 24935), (980, 19948), (1960, 9974), (3920, 4987)]