19804950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4001}}^1$

素因数の和:4030

約数の個数: 72

約数和(自身を含む): 58061016

約数和(自身を除く): 38256066

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 150, 165, 198, 225, 275, 330, 450, 495, 550, 825, 990, 1650, 2475, 4001, 4950, 8002, 12003, 20005, 24006, 36009, 40010, 44011, 60015, 72018, 88022, 100025, 120030, 132033, 180045, 200050, 220055, 264066, 300075, 360090, 396099, 440110, 600150, 660165, 792198, 900225, 1100275, 1320330, 1800450, 1980495, 2200550, 3300825, 3960990, 6601650, 9902475, 19804950]

約数ペア:

[(1, 19804950), (2, 9902475), (3, 6601650), (5, 3960990), (6, 3300825), (9, 2200550), (10, 1980495), (11, 1800450), (15, 1320330), (18, 1100275), (22, 900225), (25, 792198), (30, 660165), (33, 600150), (45, 440110), (50, 396099), (55, 360090), (66, 300075), (75, 264066), (90, 220055), (99, 200050), (110, 180045), (150, 132033), (165, 120030), (198, 100025), (225, 88022), (275, 72018), (330, 60015), (450, 44011), (495, 40010), (550, 36009), (825, 24006), (990, 20005), (1650, 12003), (2475, 8002), (4001, 4950)]