28279220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74419}}^1$

素因数の和:74447

約数の個数: 24

約数和(自身を含む): 62512800

約数和(自身を除く): 34233580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74419, 148838, 297676, 372095, 744190, 1413961, 1488380, 2827922, 5655844, 7069805, 14139610, 28279220]

約数ペア:

[(1, 28279220), (2, 14139610), (4, 7069805), (5, 5655844), (10, 2827922), (19, 1488380), (20, 1413961), (38, 744190), (76, 372095), (95, 297676), (190, 148838), (380, 74419)]