7872120

素因数分解:

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

素因数の和:254

約数の個数: 128

約数和(自身を含む): 27086400

約数和(自身を除く): 19214280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 197, 216, 222, 270, 296, 333, 360, 370, 394, 444, 540, 555, 591, 666, 740, 788, 888, 985, 999, 1080, 1110, 1182, 1332, 1480, 1576, 1665, 1773, 1970, 1998, 2220, 2364, 2664, 2955, 3330, 3546, 3940, 3996, 4440, 4728, 4995, 5319, 5910, 6660, 7092, 7289, 7880, 7992, 8865, 9990, 10638, 11820, 13320, 14184, 14578, 17730, 19980, 21276, 21867, 23640, 26595, 29156, 35460, 36445, 39960, 42552, 43734, 53190, 58312, 65601, 70920, 72890, 87468, 106380, 109335, 131202, 145780, 174936, 196803, 212760, 218670, 262404, 291560, 328005, 393606, 437340, 524808, 656010, 787212, 874680, 984015, 1312020, 1574424, 1968030, 2624040, 3936060, 7872120]

約数ペア:

[(1, 7872120), (2, 3936060), (3, 2624040), (4, 1968030), (5, 1574424), (6, 1312020), (8, 984015), (9, 874680), (10, 787212), (12, 656010), (15, 524808), (18, 437340), (20, 393606), (24, 328005), (27, 291560), (30, 262404), (36, 218670), (37, 212760), (40, 196803), (45, 174936), (54, 145780), (60, 131202), (72, 109335), (74, 106380), (90, 87468), (108, 72890), (111, 70920), (120, 65601), (135, 58312), (148, 53190), (180, 43734), (185, 42552), (197, 39960), (216, 36445), (222, 35460), (270, 29156), (296, 26595), (333, 23640), (360, 21867), (370, 21276), (394, 19980), (444, 17730), (540, 14578), (555, 14184), (591, 13320), (666, 11820), (740, 10638), (788, 9990), (888, 8865), (985, 7992), (999, 7880), (1080, 7289), (1110, 7092), (1182, 6660), (1332, 5910), (1480, 5319), (1576, 4995), (1665, 4728), (1773, 4440), (1970, 3996), (1998, 3940), (2220, 3546), (2364, 3330), (2664, 2955)]