8646820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4751}}^1$

素因数の和:4780

約数の個数: 48

約数和(自身を含む): 22353408

約数和(自身を除く): 13706588

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4751, 9502, 19004, 23755, 33257, 47510, 61763, 66514, 95020, 123526, 133028, 166285, 247052, 308815, 332570, 432341, 617630, 665140, 864682, 1235260, 1729364, 2161705, 4323410, 8646820]

約数ペア:

[(1, 8646820), (2, 4323410), (4, 2161705), (5, 1729364), (7, 1235260), (10, 864682), (13, 665140), (14, 617630), (20, 432341), (26, 332570), (28, 308815), (35, 247052), (52, 166285), (65, 133028), (70, 123526), (91, 95020), (130, 66514), (140, 61763), (182, 47510), (260, 33257), (364, 23755), (455, 19004), (910, 9502), (1820, 4751)]