28814205

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 54172800

約数和(自身を除く): 25358595

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 197, 199, 245, 591, 597, 735, 985, 995, 1379, 1393, 2955, 2985, 4137, 4179, 6895, 6965, 9653, 9751, 20685, 20895, 28959, 29253, 39203, 48265, 48755, 117609, 144795, 146265, 196015, 274421, 588045, 823263, 1372105, 1920947, 4116315, 5762841, 9604735, 28814205]

約数ペア:

[(1, 28814205), (3, 9604735), (5, 5762841), (7, 4116315), (15, 1920947), (21, 1372105), (35, 823263), (49, 588045), (105, 274421), (147, 196015), (197, 146265), (199, 144795), (245, 117609), (591, 48755), (597, 48265), (735, 39203), (985, 29253), (995, 28959), (1379, 20895), (1393, 20685), (2955, 9751), (2985, 9653), (4137, 6965), (4179, 6895)]