28426440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:851

約数の個数: 128

約数和(自身を含む): 99855360

約数和(自身を除く): 71428920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 602, 645, 787, 840, 860, 903, 1032, 1204, 1290, 1505, 1574, 1720, 1806, 2361, 2408, 2580, 3010, 3148, 3612, 3935, 4515, 4722, 5160, 5509, 6020, 6296, 7224, 7870, 9030, 9444, 11018, 11805, 12040, 15740, 16527, 18060, 18888, 22036, 23610, 27545, 31480, 33054, 33841, 36120, 44072, 47220, 55090, 66108, 67682, 82635, 94440, 101523, 110180, 132216, 135364, 165270, 169205, 203046, 220360, 236887, 270728, 330540, 338410, 406092, 473774, 507615, 661080, 676820, 710661, 812184, 947548, 1015230, 1184435, 1353640, 1421322, 1895096, 2030460, 2368870, 2842644, 3553305, 4060920, 4737740, 5685288, 7106610, 9475480, 14213220, 28426440]

約数ペア:

[(1, 28426440), (2, 14213220), (3, 9475480), (4, 7106610), (5, 5685288), (6, 4737740), (7, 4060920), (8, 3553305), (10, 2842644), (12, 2368870), (14, 2030460), (15, 1895096), (20, 1421322), (21, 1353640), (24, 1184435), (28, 1015230), (30, 947548), (35, 812184), (40, 710661), (42, 676820), (43, 661080), (56, 507615), (60, 473774), (70, 406092), (84, 338410), (86, 330540), (105, 270728), (120, 236887), (129, 220360), (140, 203046), (168, 169205), (172, 165270), (210, 135364), (215, 132216), (258, 110180), (280, 101523), (301, 94440), (344, 82635), (420, 67682), (430, 66108), (516, 55090), (602, 47220), (645, 44072), (787, 36120), (840, 33841), (860, 33054), (903, 31480), (1032, 27545), (1204, 23610), (1290, 22036), (1505, 18888), (1574, 18060), (1720, 16527), (1806, 15740), (2361, 12040), (2408, 11805), (2580, 11018), (3010, 9444), (3148, 9030), (3612, 7870), (3935, 7224), (4515, 6296), (4722, 6020), (5160, 5509)]