639779955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{24841}}^1$

素因数の和:24967

約数の個数: 32

約数和(自身を含む): 1094637888

約数和(自身を除く): 454857933

約数列:

[1, 3, 5, 15, 17, 51, 85, 101, 255, 303, 505, 1515, 1717, 5151, 8585, 24841, 25755, 74523, 124205, 372615, 422297, 1266891, 2111485, 2508941, 6334455, 7526823, 12544705, 37634115, 42651997, 127955991, 213259985, 639779955]

約数ペア:

[(1, 639779955), (3, 213259985), (5, 127955991), (15, 42651997), (17, 37634115), (51, 12544705), (85, 7526823), (101, 6334455), (255, 2508941), (303, 2111485), (505, 1266891), (1515, 422297), (1717, 372615), (5151, 124205), (8585, 74523), (24841, 25755)]