131257840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4987}}^1$

素因数の和:5054

約数の個数: 80

約数和(自身を含む): 356262912

約数和(自身を除く): 225005072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1316, 1645, 1880, 2632, 3290, 3760, 4987, 5264, 6580, 9974, 13160, 19948, 24935, 26320, 34909, 39896, 49870, 69818, 79792, 99740, 139636, 174545, 199480, 234389, 279272, 349090, 398960, 468778, 558544, 698180, 937556, 1171945, 1396360, 1640723, 1875112, 2343890, 2792720, 3281446, 3750224, 4687780, 6562892, 8203615, 9375560, 13125784, 16407230, 18751120, 26251568, 32814460, 65628920, 131257840]

約数ペア:

[(1, 131257840), (2, 65628920), (4, 32814460), (5, 26251568), (7, 18751120), (8, 16407230), (10, 13125784), (14, 9375560), (16, 8203615), (20, 6562892), (28, 4687780), (35, 3750224), (40, 3281446), (47, 2792720), (56, 2343890), (70, 1875112), (80, 1640723), (94, 1396360), (112, 1171945), (140, 937556), (188, 698180), (235, 558544), (280, 468778), (329, 398960), (376, 349090), (470, 279272), (560, 234389), (658, 199480), (752, 174545), (940, 139636), (1316, 99740), (1645, 79792), (1880, 69818), (2632, 49870), (3290, 39896), (3760, 34909), (4987, 26320), (5264, 24935), (6580, 19948), (9974, 13160)]