138880744

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{2179}}^1$

素因数の和:2473

約数の個数: 32

約数和(自身を含む): 269971200

約数和(自身を除く): 131090456

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 257, 514, 1028, 2056, 2179, 4358, 7967, 8716, 15934, 17432, 31868, 63736, 67549, 135098, 270196, 540392, 560003, 1120006, 2240012, 4480024, 17360093, 34720186, 69440372, 138880744]

約数ペア:

[(1, 138880744), (2, 69440372), (4, 34720186), (8, 17360093), (31, 4480024), (62, 2240012), (124, 1120006), (248, 560003), (257, 540392), (514, 270196), (1028, 135098), (2056, 67549), (2179, 63736), (4358, 31868), (7967, 17432), (8716, 15934)]