218720080

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:532

約数の個数: 80

約数和(自身を含む): 522288000

約数和(自身を除く): 303567920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 149, 236, 295, 298, 311, 472, 590, 596, 622, 745, 944, 1180, 1192, 1244, 1490, 1555, 2360, 2384, 2488, 2980, 3110, 4720, 4976, 5960, 6220, 8791, 11920, 12440, 17582, 18349, 24880, 35164, 36698, 43955, 46339, 70328, 73396, 87910, 91745, 92678, 140656, 146792, 175820, 183490, 185356, 231695, 293584, 351640, 366980, 370712, 463390, 703280, 733960, 741424, 926780, 1467920, 1853560, 2734001, 3707120, 5468002, 10936004, 13670005, 21872008, 27340010, 43744016, 54680020, 109360040, 218720080]

約数ペア:

[(1, 218720080), (2, 109360040), (4, 54680020), (5, 43744016), (8, 27340010), (10, 21872008), (16, 13670005), (20, 10936004), (40, 5468002), (59, 3707120), (80, 2734001), (118, 1853560), (149, 1467920), (236, 926780), (295, 741424), (298, 733960), (311, 703280), (472, 463390), (590, 370712), (596, 366980), (622, 351640), (745, 293584), (944, 231695), (1180, 185356), (1192, 183490), (1244, 175820), (1490, 146792), (1555, 140656), (2360, 92678), (2384, 91745), (2488, 87910), (2980, 73396), (3110, 70328), (4720, 46339), (4976, 43955), (5960, 36698), (6220, 35164), (8791, 24880), (11920, 18349), (12440, 17582)]