19680300

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:257

約数の個数: 144

約数和(自身を含む): 65308320

約数和(自身を除く): 45628020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 37, 45, 50, 54, 60, 74, 75, 90, 100, 108, 111, 135, 148, 150, 180, 185, 197, 222, 225, 270, 300, 333, 370, 394, 444, 450, 540, 555, 591, 666, 675, 740, 788, 900, 925, 985, 999, 1110, 1182, 1332, 1350, 1665, 1773, 1850, 1970, 1998, 2220, 2364, 2700, 2775, 2955, 3330, 3546, 3700, 3940, 3996, 4925, 4995, 5319, 5550, 5910, 6660, 7092, 7289, 8325, 8865, 9850, 9990, 10638, 11100, 11820, 14578, 14775, 16650, 17730, 19700, 19980, 21276, 21867, 24975, 26595, 29156, 29550, 33300, 35460, 36445, 43734, 44325, 49950, 53190, 59100, 65601, 72890, 87468, 88650, 99900, 106380, 109335, 131202, 132975, 145780, 177300, 182225, 196803, 218670, 262404, 265950, 328005, 364450, 393606, 437340, 531900, 546675, 656010, 728900, 787212, 984015, 1093350, 1312020, 1640025, 1968030, 2186700, 3280050, 3936060, 4920075, 6560100, 9840150, 19680300]

約数ペア:

[(1, 19680300), (2, 9840150), (3, 6560100), (4, 4920075), (5, 3936060), (6, 3280050), (9, 2186700), (10, 1968030), (12, 1640025), (15, 1312020), (18, 1093350), (20, 984015), (25, 787212), (27, 728900), (30, 656010), (36, 546675), (37, 531900), (45, 437340), (50, 393606), (54, 364450), (60, 328005), (74, 265950), (75, 262404), (90, 218670), (100, 196803), (108, 182225), (111, 177300), (135, 145780), (148, 132975), (150, 131202), (180, 109335), (185, 106380), (197, 99900), (222, 88650), (225, 87468), (270, 72890), (300, 65601), (333, 59100), (370, 53190), (394, 49950), (444, 44325), (450, 43734), (540, 36445), (555, 35460), (591, 33300), (666, 29550), (675, 29156), (740, 26595), (788, 24975), (900, 21867), (925, 21276), (985, 19980), (999, 19700), (1110, 17730), (1182, 16650), (1332, 14775), (1350, 14578), (1665, 11820), (1773, 11100), (1850, 10638), (1970, 9990), (1998, 9850), (2220, 8865), (2364, 8325), (2700, 7289), (2775, 7092), (2955, 6660), (3330, 5910), (3546, 5550), (3700, 5319), (3940, 4995), (3996, 4925)]