20248080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{353}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 63210240

約数和(自身を除く): 42962160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 353, 478, 706, 717, 956, 1059, 1195, 1412, 1434, 1765, 1912, 2118, 2390, 2824, 2868, 3530, 3585, 3824, 4236, 4780, 5295, 5648, 5736, 7060, 7170, 8472, 9560, 10590, 11472, 14120, 14340, 16944, 19120, 21180, 28240, 28680, 42360, 57360, 84367, 84720, 168734, 253101, 337468, 421835, 506202, 674936, 843670, 1012404, 1265505, 1349872, 1687340, 2024808, 2531010, 3374680, 4049616, 5062020, 6749360, 10124040, 20248080]

約数ペア:

[(1, 20248080), (2, 10124040), (3, 6749360), (4, 5062020), (5, 4049616), (6, 3374680), (8, 2531010), (10, 2024808), (12, 1687340), (15, 1349872), (16, 1265505), (20, 1012404), (24, 843670), (30, 674936), (40, 506202), (48, 421835), (60, 337468), (80, 253101), (120, 168734), (239, 84720), (240, 84367), (353, 57360), (478, 42360), (706, 28680), (717, 28240), (956, 21180), (1059, 19120), (1195, 16944), (1412, 14340), (1434, 14120), (1765, 11472), (1912, 10590), (2118, 9560), (2390, 8472), (2824, 7170), (2868, 7060), (3530, 5736), (3585, 5648), (3824, 5295), (4236, 4780)]