20980295

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{953}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 31321728

約数和(自身を除く): 10341433

約数列:

[1, 5, 7, 17, 35, 37, 85, 119, 185, 259, 595, 629, 953, 1295, 3145, 4403, 4765, 6671, 16201, 22015, 33355, 35261, 81005, 113407, 176305, 246827, 567035, 599437, 1234135, 2997185, 4196059, 20980295]

約数ペア:

[(1, 20980295), (5, 4196059), (7, 2997185), (17, 1234135), (35, 599437), (37, 567035), (85, 246827), (119, 176305), (185, 113407), (259, 81005), (595, 35261), (629, 33355), (953, 22015), (1295, 16201), (3145, 6671), (4403, 4765)]