28211260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2617}}^1$

素因数の和:2651

約数の個数: 72

約数和(自身を含む): 75209904

約数和(自身を除く): 46998644

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2617, 2695, 5234, 5390, 10468, 10780, 13085, 18319, 26170, 28787, 36638, 52340, 57574, 73276, 91595, 115148, 128233, 143935, 183190, 201509, 256466, 287870, 366380, 403018, 512932, 575740, 641165, 806036, 1007545, 1282330, 1410563, 2015090, 2564660, 2821126, 4030180, 5642252, 7052815, 14105630, 28211260]

約数ペア:

[(1, 28211260), (2, 14105630), (4, 7052815), (5, 5642252), (7, 4030180), (10, 2821126), (11, 2564660), (14, 2015090), (20, 1410563), (22, 1282330), (28, 1007545), (35, 806036), (44, 641165), (49, 575740), (55, 512932), (70, 403018), (77, 366380), (98, 287870), (110, 256466), (140, 201509), (154, 183190), (196, 143935), (220, 128233), (245, 115148), (308, 91595), (385, 73276), (490, 57574), (539, 52340), (770, 36638), (980, 28787), (1078, 26170), (1540, 18319), (2156, 13085), (2617, 10780), (2695, 10468), (5234, 5390)]