19986000

素因数分解:

$2^4\times 3^1\times 5^3\times {\mathrm{3331}}^1$

素因数の和:3357

約数の個数: 80

約数和(自身を含む): 64454208

約数和(自身を除く): 44468208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 750, 1000, 1200, 1500, 2000, 3000, 3331, 6000, 6662, 9993, 13324, 16655, 19986, 26648, 33310, 39972, 49965, 53296, 66620, 79944, 83275, 99930, 133240, 159888, 166550, 199860, 249825, 266480, 333100, 399720, 416375, 499650, 666200, 799440, 832750, 999300, 1249125, 1332400, 1665500, 1998600, 2498250, 3331000, 3997200, 4996500, 6662000, 9993000, 19986000]

約数ペア:

[(1, 19986000), (2, 9993000), (3, 6662000), (4, 4996500), (5, 3997200), (6, 3331000), (8, 2498250), (10, 1998600), (12, 1665500), (15, 1332400), (16, 1249125), (20, 999300), (24, 832750), (25, 799440), (30, 666200), (40, 499650), (48, 416375), (50, 399720), (60, 333100), (75, 266480), (80, 249825), (100, 199860), (120, 166550), (125, 159888), (150, 133240), (200, 99930), (240, 83275), (250, 79944), (300, 66620), (375, 53296), (400, 49965), (500, 39972), (600, 33310), (750, 26648), (1000, 19986), (1200, 16655), (1500, 13324), (2000, 9993), (3000, 6662), (3331, 6000)]