28201460

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4111}}^1$

素因数の和:4141

約数の個数: 48

約数和(自身を含む): 69081600

約数和(自身を除く): 40880140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4111, 6860, 8222, 16444, 20555, 28777, 41110, 57554, 82220, 115108, 143885, 201439, 287770, 402878, 575540, 805756, 1007195, 1410073, 2014390, 2820146, 4028780, 5640292, 7050365, 14100730, 28201460]

約数ペア:

[(1, 28201460), (2, 14100730), (4, 7050365), (5, 5640292), (7, 4028780), (10, 2820146), (14, 2014390), (20, 1410073), (28, 1007195), (35, 805756), (49, 575540), (70, 402878), (98, 287770), (140, 201439), (196, 143885), (245, 115108), (343, 82220), (490, 57554), (686, 41110), (980, 28777), (1372, 20555), (1715, 16444), (3430, 8222), (4111, 6860)]