18220500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4049}}^1$

素因数の和:4074

約数の個数: 72

約数和(自身を含む): 57493800

約数和(自身を除く): 39273300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4049, 4500, 8098, 12147, 16196, 20245, 24294, 36441, 40490, 48588, 60735, 72882, 80980, 101225, 121470, 145764, 182205, 202450, 242940, 303675, 364410, 404900, 506125, 607350, 728820, 911025, 1012250, 1214700, 1518375, 1822050, 2024500, 3036750, 3644100, 4555125, 6073500, 9110250, 18220500]

約数ペア:

[(1, 18220500), (2, 9110250), (3, 6073500), (4, 4555125), (5, 3644100), (6, 3036750), (9, 2024500), (10, 1822050), (12, 1518375), (15, 1214700), (18, 1012250), (20, 911025), (25, 728820), (30, 607350), (36, 506125), (45, 404900), (50, 364410), (60, 303675), (75, 242940), (90, 202450), (100, 182205), (125, 145764), (150, 121470), (180, 101225), (225, 80980), (250, 72882), (300, 60735), (375, 48588), (450, 40490), (500, 36441), (750, 24294), (900, 20245), (1125, 16196), (1500, 12147), (2250, 8098), (4049, 4500)]