65967800

素因数分解:

$2^3\times 5^2\times {\mathrm{499}}^1\times {\mathrm{661}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 153915000

約数和(自身を除く): 87947200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 499, 661, 998, 1322, 1996, 2495, 2644, 3305, 3992, 4990, 5288, 6610, 9980, 12475, 13220, 16525, 19960, 24950, 26440, 33050, 49900, 66100, 99800, 132200, 329839, 659678, 1319356, 1649195, 2638712, 3298390, 6596780, 8245975, 13193560, 16491950, 32983900, 65967800]

約数ペア:

[(1, 65967800), (2, 32983900), (4, 16491950), (5, 13193560), (8, 8245975), (10, 6596780), (20, 3298390), (25, 2638712), (40, 1649195), (50, 1319356), (100, 659678), (200, 329839), (499, 132200), (661, 99800), (998, 66100), (1322, 49900), (1996, 33050), (2495, 26440), (2644, 24950), (3305, 19960), (3992, 16525), (4990, 13220), (5288, 12475), (6610, 9980)]