15222920

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{883}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 34369920

約数和(自身を除く): 19147000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 883, 1724, 1766, 2155, 3448, 3532, 4310, 4415, 7064, 8620, 8830, 17240, 17660, 35320, 380573, 761146, 1522292, 1902865, 3044584, 3805730, 7611460, 15222920]

約数ペア:

[(1, 15222920), (2, 7611460), (4, 3805730), (5, 3044584), (8, 1902865), (10, 1522292), (20, 761146), (40, 380573), (431, 35320), (862, 17660), (883, 17240), (1724, 8830), (1766, 8620), (2155, 7064), (3448, 4415), (3532, 4310)]