3937780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2557}}^1$

素因数の和:2584

約数の個数: 48

約数和(自身を含む): 10313856

約数和(自身を除く): 6376076

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, 2557, 5114, 10228, 12785, 17899, 25570, 28127, 35798, 51140, 56254, 71596, 89495, 112508, 140635, 178990, 196889, 281270, 357980, 393778, 562540, 787556, 984445, 1968890, 3937780]

約数ペア:

[(1, 3937780), (2, 1968890), (4, 984445), (5, 787556), (7, 562540), (10, 393778), (11, 357980), (14, 281270), (20, 196889), (22, 178990), (28, 140635), (35, 112508), (44, 89495), (55, 71596), (70, 56254), (77, 51140), (110, 35798), (140, 28127), (154, 25570), (220, 17899), (308, 12785), (385, 10228), (770, 5114), (1540, 2557)]