78915780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1667}}^1$

素因数の和:1945

約数の個数: 72

約数和(自身を含む): 240432192

約数和(自身を除く): 161516412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 789, 1052, 1315, 1578, 1667, 2367, 2630, 3156, 3334, 3945, 4734, 5001, 5260, 6668, 7890, 8335, 9468, 10002, 11835, 15003, 15780, 16670, 20004, 23670, 25005, 30006, 33340, 47340, 50010, 60012, 75015, 100020, 150030, 300060, 438421, 876842, 1315263, 1753684, 2192105, 2630526, 3945789, 4384210, 5261052, 6576315, 7891578, 8768420, 13152630, 15783156, 19728945, 26305260, 39457890, 78915780]

約数ペア:

[(1, 78915780), (2, 39457890), (3, 26305260), (4, 19728945), (5, 15783156), (6, 13152630), (9, 8768420), (10, 7891578), (12, 6576315), (15, 5261052), (18, 4384210), (20, 3945789), (30, 2630526), (36, 2192105), (45, 1753684), (60, 1315263), (90, 876842), (180, 438421), (263, 300060), (526, 150030), (789, 100020), (1052, 75015), (1315, 60012), (1578, 50010), (1667, 47340), (2367, 33340), (2630, 30006), (3156, 25005), (3334, 23670), (3945, 20004), (4734, 16670), (5001, 15780), (5260, 15003), (6668, 11835), (7890, 10002), (8335, 9468)]