28261360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18593}}^1$

素因数の和:18625

約数の個数: 40

約数和(自身を含む): 69169680

約数和(自身を除く): 40908320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18593, 37186, 74372, 92965, 148744, 185930, 297488, 353267, 371860, 706534, 743720, 1413068, 1487440, 1766335, 2826136, 3532670, 5652272, 7065340, 14130680, 28261360]

約数ペア:

[(1, 28261360), (2, 14130680), (4, 7065340), (5, 5652272), (8, 3532670), (10, 2826136), (16, 1766335), (19, 1487440), (20, 1413068), (38, 743720), (40, 706534), (76, 371860), (80, 353267), (95, 297488), (152, 185930), (190, 148744), (304, 92965), (380, 74372), (760, 37186), (1520, 18593)]