51739240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{719}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 133747200

約数和(自身を除く): 82007960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 719, 1028, 1285, 1438, 1799, 2056, 2570, 2876, 3595, 3598, 5033, 5140, 5752, 7190, 7196, 8995, 10066, 10280, 14380, 14392, 17990, 20132, 25165, 28760, 35980, 40264, 50330, 71960, 100660, 184783, 201320, 369566, 739132, 923915, 1293481, 1478264, 1847830, 2586962, 3695660, 5173924, 6467405, 7391320, 10347848, 12934810, 25869620, 51739240]

約数ペア:

[(1, 51739240), (2, 25869620), (4, 12934810), (5, 10347848), (7, 7391320), (8, 6467405), (10, 5173924), (14, 3695660), (20, 2586962), (28, 1847830), (35, 1478264), (40, 1293481), (56, 923915), (70, 739132), (140, 369566), (257, 201320), (280, 184783), (514, 100660), (719, 71960), (1028, 50330), (1285, 40264), (1438, 35980), (1799, 28760), (2056, 25165), (2570, 20132), (2876, 17990), (3595, 14392), (3598, 14380), (5033, 10280), (5140, 10066), (5752, 8995), (7190, 7196)]