215027440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 513404640

約数和(自身を除く): 298377200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 139, 244, 278, 305, 317, 488, 556, 610, 634, 695, 976, 1112, 1220, 1268, 1390, 1585, 2224, 2440, 2536, 2780, 3170, 4880, 5072, 5560, 6340, 8479, 11120, 12680, 16958, 19337, 25360, 33916, 38674, 42395, 44063, 67832, 77348, 84790, 88126, 96685, 135664, 154696, 169580, 176252, 193370, 220315, 309392, 339160, 352504, 386740, 440630, 678320, 705008, 773480, 881260, 1546960, 1762520, 2687843, 3525040, 5375686, 10751372, 13439215, 21502744, 26878430, 43005488, 53756860, 107513720, 215027440]

約数ペア:

[(1, 215027440), (2, 107513720), (4, 53756860), (5, 43005488), (8, 26878430), (10, 21502744), (16, 13439215), (20, 10751372), (40, 5375686), (61, 3525040), (80, 2687843), (122, 1762520), (139, 1546960), (244, 881260), (278, 773480), (305, 705008), (317, 678320), (488, 440630), (556, 386740), (610, 352504), (634, 339160), (695, 309392), (976, 220315), (1112, 193370), (1220, 176252), (1268, 169580), (1390, 154696), (1585, 135664), (2224, 96685), (2440, 88126), (2536, 84790), (2780, 77348), (3170, 67832), (4880, 44063), (5072, 42395), (5560, 38674), (6340, 33916), (8479, 25360), (11120, 19337), (12680, 16958)]