28287120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2741}}^1$

素因数の和:2800

約数の個数: 80

約数和(自身を含む): 89762112

約数和(自身を除く): 61474992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 2741, 3440, 5160, 5482, 8223, 10320, 10964, 13705, 16446, 21928, 27410, 32892, 41115, 43856, 54820, 65784, 82230, 109640, 117863, 131568, 164460, 219280, 235726, 328920, 353589, 471452, 589315, 657840, 707178, 942904, 1178630, 1414356, 1767945, 1885808, 2357260, 2828712, 3535890, 4714520, 5657424, 7071780, 9429040, 14143560, 28287120]

約数ペア:

[(1, 28287120), (2, 14143560), (3, 9429040), (4, 7071780), (5, 5657424), (6, 4714520), (8, 3535890), (10, 2828712), (12, 2357260), (15, 1885808), (16, 1767945), (20, 1414356), (24, 1178630), (30, 942904), (40, 707178), (43, 657840), (48, 589315), (60, 471452), (80, 353589), (86, 328920), (120, 235726), (129, 219280), (172, 164460), (215, 131568), (240, 117863), (258, 109640), (344, 82230), (430, 65784), (516, 54820), (645, 43856), (688, 41115), (860, 32892), (1032, 27410), (1290, 21928), (1720, 16446), (2064, 13705), (2580, 10964), (2741, 10320), (3440, 8223), (5160, 5482)]