20566800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 180

約数和(自身を含む): 74208420

約数和(自身を除く): 53641620

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 29, 30, 36, 40, 45, 48, 50, 58, 60, 72, 75, 80, 87, 90, 100, 116, 120, 144, 145, 150, 174, 180, 197, 200, 225, 232, 240, 261, 290, 300, 348, 360, 394, 400, 435, 450, 464, 522, 580, 591, 600, 696, 720, 725, 788, 870, 900, 985, 1044, 1160, 1182, 1200, 1305, 1392, 1450, 1576, 1740, 1773, 1800, 1970, 2088, 2175, 2320, 2364, 2610, 2900, 2955, 3152, 3480, 3546, 3600, 3940, 4176, 4350, 4728, 4925, 5220, 5713, 5800, 5910, 6525, 6960, 7092, 7880, 8700, 8865, 9456, 9850, 10440, 11426, 11600, 11820, 13050, 14184, 14775, 15760, 17139, 17400, 17730, 19700, 20880, 22852, 23640, 26100, 28368, 28565, 29550, 34278, 34800, 35460, 39400, 44325, 45704, 47280, 51417, 52200, 57130, 59100, 68556, 70920, 78800, 85695, 88650, 91408, 102834, 104400, 114260, 118200, 137112, 141840, 142825, 171390, 177300, 205668, 228520, 236400, 257085, 274224, 285650, 342780, 354600, 411336, 428475, 457040, 514170, 571300, 685560, 709200, 822672, 856950, 1028340, 1142600, 1285425, 1371120, 1713900, 2056680, 2285200, 2570850, 3427800, 4113360, 5141700, 6855600, 10283400, 20566800]

約数ペア:

[(1, 20566800), (2, 10283400), (3, 6855600), (4, 5141700), (5, 4113360), (6, 3427800), (8, 2570850), (9, 2285200), (10, 2056680), (12, 1713900), (15, 1371120), (16, 1285425), (18, 1142600), (20, 1028340), (24, 856950), (25, 822672), (29, 709200), (30, 685560), (36, 571300), (40, 514170), (45, 457040), (48, 428475), (50, 411336), (58, 354600), (60, 342780), (72, 285650), (75, 274224), (80, 257085), (87, 236400), (90, 228520), (100, 205668), (116, 177300), (120, 171390), (144, 142825), (145, 141840), (150, 137112), (174, 118200), (180, 114260), (197, 104400), (200, 102834), (225, 91408), (232, 88650), (240, 85695), (261, 78800), (290, 70920), (300, 68556), (348, 59100), (360, 57130), (394, 52200), (400, 51417), (435, 47280), (450, 45704), (464, 44325), (522, 39400), (580, 35460), (591, 34800), (600, 34278), (696, 29550), (720, 28565), (725, 28368), (788, 26100), (870, 23640), (900, 22852), (985, 20880), (1044, 19700), (1160, 17730), (1182, 17400), (1200, 17139), (1305, 15760), (1392, 14775), (1450, 14184), (1576, 13050), (1740, 11820), (1773, 11600), (1800, 11426), (1970, 10440), (2088, 9850), (2175, 9456), (2320, 8865), (2364, 8700), (2610, 7880), (2900, 7092), (2955, 6960), (3152, 6525), (3480, 5910), (3546, 5800), (3600, 5713), (3940, 5220), (4176, 4925), (4350, 4728)]