19721250

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{1753}}^1$

素因数の和:1781

約数の個数: 60

約数和(自身を含む): 53425086

約数和(自身を除く): 33703836

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 625, 750, 1125, 1250, 1753, 1875, 2250, 3506, 3750, 5259, 5625, 8765, 10518, 11250, 15777, 17530, 26295, 31554, 43825, 52590, 78885, 87650, 131475, 157770, 219125, 262950, 394425, 438250, 657375, 788850, 1095625, 1314750, 1972125, 2191250, 3286875, 3944250, 6573750, 9860625, 19721250]

約数ペア:

[(1, 19721250), (2, 9860625), (3, 6573750), (5, 3944250), (6, 3286875), (9, 2191250), (10, 1972125), (15, 1314750), (18, 1095625), (25, 788850), (30, 657375), (45, 438250), (50, 394425), (75, 262950), (90, 219125), (125, 157770), (150, 131475), (225, 87650), (250, 78885), (375, 52590), (450, 43825), (625, 31554), (750, 26295), (1125, 17530), (1250, 15777), (1753, 11250), (1875, 10518), (2250, 8765), (3506, 5625), (3750, 5259)]