20995500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13997}}^1$

素因数の和:14019

約数の個数: 48

約数和(自身を含む): 61143264

約数和(自身を除く): 40147764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1500, 13997, 27994, 41991, 55988, 69985, 83982, 139970, 167964, 209955, 279940, 349925, 419910, 699850, 839820, 1049775, 1399700, 1749625, 2099550, 3499250, 4199100, 5248875, 6998500, 10497750, 20995500]

約数ペア:

[(1, 20995500), (2, 10497750), (3, 6998500), (4, 5248875), (5, 4199100), (6, 3499250), (10, 2099550), (12, 1749625), (15, 1399700), (20, 1049775), (25, 839820), (30, 699850), (50, 419910), (60, 349925), (75, 279940), (100, 209955), (125, 167964), (150, 139970), (250, 83982), (300, 69985), (375, 55988), (500, 41991), (750, 27994), (1500, 13997)]