25705784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13009}}^1$

素因数の和:13047

約数の個数: 32

約数和(自身を含む): 54642000

約数和(自身を除く): 28936216

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 13009, 26018, 52036, 104072, 169117, 247171, 338234, 494342, 676468, 988684, 1352936, 1977368, 3213223, 6426446, 12852892, 25705784]

約数ペア:

[(1, 25705784), (2, 12852892), (4, 6426446), (8, 3213223), (13, 1977368), (19, 1352936), (26, 988684), (38, 676468), (52, 494342), (76, 338234), (104, 247171), (152, 169117), (247, 104072), (494, 52036), (988, 26018), (1976, 13009)]