3928540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2551}}^1$

素因数の和:2578

約数の個数: 48

約数和(自身を含む): 10289664

約数和(自身を除く): 6361124

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, 2551, 5102, 10204, 12755, 17857, 25510, 28061, 35714, 51020, 56122, 71428, 89285, 112244, 140305, 178570, 196427, 280610, 357140, 392854, 561220, 785708, 982135, 1964270, 3928540]

約数ペア:

[(1, 3928540), (2, 1964270), (4, 982135), (5, 785708), (7, 561220), (10, 392854), (11, 357140), (14, 280610), (20, 196427), (22, 178570), (28, 140305), (35, 112244), (44, 89285), (55, 71428), (70, 56122), (77, 51020), (110, 35714), (140, 28061), (154, 25510), (220, 17857), (308, 12755), (385, 10204), (770, 5102), (1540, 2551)]