20195964

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1399}}^1$

素因数の和:1810

約数の個数: 36

約数和(自身を含む): 51214800

約数和(自身を除く): 31018836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1399, 1604, 2406, 2798, 3609, 4197, 4812, 5596, 7218, 8394, 12591, 14436, 16788, 25182, 50364, 560999, 1121998, 1682997, 2243996, 3365994, 5048991, 6731988, 10097982, 20195964]

約数ペア:

[(1, 20195964), (2, 10097982), (3, 6731988), (4, 5048991), (6, 3365994), (9, 2243996), (12, 1682997), (18, 1121998), (36, 560999), (401, 50364), (802, 25182), (1203, 16788), (1399, 14436), (1604, 12591), (2406, 8394), (2798, 7218), (3609, 5596), (4197, 4812)]