18751120

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4987}}^1$

素因数の和:5047

約数の個数: 40

約数和(自身を含む): 44532864

約数和(自身を除く): 25781744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 4987, 9974, 19948, 24935, 39896, 49870, 79792, 99740, 199480, 234389, 398960, 468778, 937556, 1171945, 1875112, 2343890, 3750224, 4687780, 9375560, 18751120]

約数ペア:

[(1, 18751120), (2, 9375560), (4, 4687780), (5, 3750224), (8, 2343890), (10, 1875112), (16, 1171945), (20, 937556), (40, 468778), (47, 398960), (80, 234389), (94, 199480), (188, 99740), (235, 79792), (376, 49870), (470, 39896), (752, 24935), (940, 19948), (1880, 9974), (3760, 4987)]