128520700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16691}}^1$

素因数の和:16723

約数の個数: 72

約数和(自身を含む): 347727744

約数和(自身を除く): 219207044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700, 16691, 33382, 66764, 83455, 116837, 166910, 183601, 233674, 333820, 367202, 417275, 467348, 584185, 734404, 834550, 918005, 1168370, 1285207, 1669100, 1836010, 2336740, 2570414, 2920925, 3672020, 4590025, 5140828, 5841850, 6426035, 9180050, 11683700, 12852070, 18360100, 25704140, 32130175, 64260350, 128520700]

約数ペア:

[(1, 128520700), (2, 64260350), (4, 32130175), (5, 25704140), (7, 18360100), (10, 12852070), (11, 11683700), (14, 9180050), (20, 6426035), (22, 5841850), (25, 5140828), (28, 4590025), (35, 3672020), (44, 2920925), (50, 2570414), (55, 2336740), (70, 1836010), (77, 1669100), (100, 1285207), (110, 1168370), (140, 918005), (154, 834550), (175, 734404), (220, 584185), (275, 467348), (308, 417275), (350, 367202), (385, 333820), (550, 233674), (700, 183601), (770, 166910), (1100, 116837), (1540, 83455), (1925, 66764), (3850, 33382), (7700, 16691)]