28106540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18251}}^1$

素因数の和:18278

約数の個数: 48

約数和(自身を含む): 73592064

約数和(自身を除く): 45485524

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18251, 36502, 73004, 91255, 127757, 182510, 200761, 255514, 365020, 401522, 511028, 638785, 803044, 1003805, 1277570, 1405327, 2007610, 2555140, 2810654, 4015220, 5621308, 7026635, 14053270, 28106540]

約数ペア:

[(1, 28106540), (2, 14053270), (4, 7026635), (5, 5621308), (7, 4015220), (10, 2810654), (11, 2555140), (14, 2007610), (20, 1405327), (22, 1277570), (28, 1003805), (35, 803044), (44, 638785), (55, 511028), (70, 401522), (77, 365020), (110, 255514), (140, 200761), (154, 182510), (220, 127757), (308, 91255), (385, 73004), (770, 36502), (1540, 18251)]