28081440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19501}}^1$

素因数の和:19522

約数の個数: 72

約数和(自身を含む): 95832828

約数和(自身を除く): 67751388

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19501, 39002, 58503, 78004, 97505, 117006, 156008, 175509, 195010, 234012, 292515, 312016, 351018, 390020, 468024, 585030, 624032, 702036, 780040, 877545, 936048, 1170060, 1404072, 1560080, 1755090, 1872096, 2340120, 2808144, 3120160, 3510180, 4680240, 5616288, 7020360, 9360480, 14040720, 28081440]

約数ペア:

[(1, 28081440), (2, 14040720), (3, 9360480), (4, 7020360), (5, 5616288), (6, 4680240), (8, 3510180), (9, 3120160), (10, 2808144), (12, 2340120), (15, 1872096), (16, 1755090), (18, 1560080), (20, 1404072), (24, 1170060), (30, 936048), (32, 877545), (36, 780040), (40, 702036), (45, 624032), (48, 585030), (60, 468024), (72, 390020), (80, 351018), (90, 312016), (96, 292515), (120, 234012), (144, 195010), (160, 175509), (180, 156008), (240, 117006), (288, 97505), (360, 78004), (480, 58503), (720, 39002), (1440, 19501)]