1968890

素因数分解:

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

素因数の和:2582

約数の個数: 32

約数和(自身を含む): 4420224

約数和(自身を除く): 2451334

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 2557, 5114, 12785, 17899, 25570, 28127, 35798, 56254, 89495, 140635, 178990, 196889, 281270, 393778, 984445, 1968890]

約数ペア:

[(1, 1968890), (2, 984445), (5, 393778), (7, 281270), (10, 196889), (11, 178990), (14, 140635), (22, 89495), (35, 56254), (55, 35798), (70, 28127), (77, 25570), (110, 17899), (154, 12785), (385, 5114), (770, 2557)]