15895280

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{461}}^1$

素因数の和:905

約数の個数: 40

約数和(自身を含む): 37122624

約数和(自身を除く): 21227344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 461, 862, 922, 1724, 1844, 2155, 2305, 3448, 3688, 4310, 4610, 6896, 7376, 8620, 9220, 17240, 18440, 34480, 36880, 198691, 397382, 794764, 993455, 1589528, 1986910, 3179056, 3973820, 7947640, 15895280]

約数ペア:

[(1, 15895280), (2, 7947640), (4, 3973820), (5, 3179056), (8, 1986910), (10, 1589528), (16, 993455), (20, 794764), (40, 397382), (80, 198691), (431, 36880), (461, 34480), (862, 18440), (922, 17240), (1724, 9220), (1844, 8620), (2155, 7376), (2305, 6896), (3448, 4610), (3688, 4310)]