12785840

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{883}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 29925168

約数和(自身を除く): 17139328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 883, 905, 1448, 1766, 1810, 2896, 3532, 3620, 4415, 7064, 7240, 8830, 14128, 14480, 17660, 35320, 70640, 159823, 319646, 639292, 799115, 1278584, 1598230, 2557168, 3196460, 6392920, 12785840]

約数ペア:

[(1, 12785840), (2, 6392920), (4, 3196460), (5, 2557168), (8, 1598230), (10, 1278584), (16, 799115), (20, 639292), (40, 319646), (80, 159823), (181, 70640), (362, 35320), (724, 17660), (883, 14480), (905, 14128), (1448, 8830), (1766, 7240), (1810, 7064), (2896, 4415), (3532, 3620)]