16745720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6863}}^1$

素因数の和:6935

約数の個数: 32

約数和(自身を含む): 38301120

約数和(自身を除く): 21555400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6863, 13726, 27452, 34315, 54904, 68630, 137260, 274520, 418643, 837286, 1674572, 2093215, 3349144, 4186430, 8372860, 16745720]

約数ペア:

[(1, 16745720), (2, 8372860), (4, 4186430), (5, 3349144), (8, 2093215), (10, 1674572), (20, 837286), (40, 418643), (61, 274520), (122, 137260), (244, 68630), (305, 54904), (488, 34315), (610, 27452), (1220, 13726), (2440, 6863)]