18871920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{8737}}^1$

素因数の和:8759

約数の個数: 80

約数和(自身を含む): 65010720

約数和(自身を除く): 46138800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 8737, 17474, 26211, 34948, 43685, 52422, 69896, 78633, 87370, 104844, 131055, 139792, 157266, 174740, 209688, 235899, 262110, 314532, 349480, 393165, 419376, 471798, 524220, 629064, 698960, 786330, 943596, 1048440, 1179495, 1258128, 1572660, 1887192, 2096880, 2358990, 3145320, 3774384, 4717980, 6290640, 9435960, 18871920]

約数ペア:

[(1, 18871920), (2, 9435960), (3, 6290640), (4, 4717980), (5, 3774384), (6, 3145320), (8, 2358990), (9, 2096880), (10, 1887192), (12, 1572660), (15, 1258128), (16, 1179495), (18, 1048440), (20, 943596), (24, 786330), (27, 698960), (30, 629064), (36, 524220), (40, 471798), (45, 419376), (48, 393165), (54, 349480), (60, 314532), (72, 262110), (80, 235899), (90, 209688), (108, 174740), (120, 157266), (135, 139792), (144, 131055), (180, 104844), (216, 87370), (240, 78633), (270, 69896), (360, 52422), (432, 43685), (540, 34948), (720, 26211), (1080, 17474), (2160, 8737)]