4242140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 10299072

約数和(自身を除く): 6056932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 193, 314, 386, 628, 772, 785, 965, 1099, 1351, 1570, 1930, 2198, 2702, 3140, 3860, 4396, 5404, 5495, 6755, 10990, 13510, 21980, 27020, 30301, 60602, 121204, 151505, 212107, 303010, 424214, 606020, 848428, 1060535, 2121070, 4242140]

約数ペア:

[(1, 4242140), (2, 2121070), (4, 1060535), (5, 848428), (7, 606020), (10, 424214), (14, 303010), (20, 212107), (28, 151505), (35, 121204), (70, 60602), (140, 30301), (157, 27020), (193, 21980), (314, 13510), (386, 10990), (628, 6755), (772, 5495), (785, 5404), (965, 4396), (1099, 3860), (1351, 3140), (1570, 2702), (1930, 2198)]