15656440

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1523}}^1$

素因数の和:1791

約数の個数: 32

約数和(自身を含む): 35387280

約数和(自身を除く): 19730840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1523, 2056, 2570, 3046, 5140, 6092, 7615, 10280, 12184, 15230, 30460, 60920, 391411, 782822, 1565644, 1957055, 3131288, 3914110, 7828220, 15656440]

約数ペア:

[(1, 15656440), (2, 7828220), (4, 3914110), (5, 3131288), (8, 1957055), (10, 1565644), (20, 782822), (40, 391411), (257, 60920), (514, 30460), (1028, 15230), (1285, 12184), (1523, 10280), (2056, 7615), (2570, 6092), (3046, 5140)]