20091050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:575

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 23031190

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 137, 175, 274, 350, 419, 685, 838, 959, 1370, 1918, 2095, 2933, 3425, 4190, 4795, 5866, 6850, 9590, 10475, 14665, 20950, 23975, 29330, 47950, 57403, 73325, 114806, 146650, 287015, 401821, 574030, 803642, 1435075, 2009105, 2870150, 4018210, 10045525, 20091050]

約数ペア:

[(1, 20091050), (2, 10045525), (5, 4018210), (7, 2870150), (10, 2009105), (14, 1435075), (25, 803642), (35, 574030), (50, 401821), (70, 287015), (137, 146650), (175, 114806), (274, 73325), (350, 57403), (419, 47950), (685, 29330), (838, 23975), (959, 20950), (1370, 14665), (1918, 10475), (2095, 9590), (2933, 6850), (3425, 5866), (4190, 4795)]