28979972

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{743}}^1$

素因数の和:960

約数の個数: 36

約数和(自身を含む): 59371200

約数和(自身を除く): 30391228

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 743, 796, 1393, 1486, 2786, 2972, 5201, 5572, 9751, 10402, 19502, 20804, 36407, 39004, 72814, 145628, 147857, 295714, 591428, 1034999, 2069998, 4139996, 7244993, 14489986, 28979972]

約数ペア:

[(1, 28979972), (2, 14489986), (4, 7244993), (7, 4139996), (14, 2069998), (28, 1034999), (49, 591428), (98, 295714), (196, 147857), (199, 145628), (398, 72814), (743, 39004), (796, 36407), (1393, 20804), (1486, 19502), (2786, 10402), (2972, 9751), (5201, 5572)]