20026880

素因数分解:

$2^9\times 5^1\times {\mathrm{7823}}^1$

素因数の和:7846

約数の個数: 40

約数和(自身を含む): 48023712

約数和(自身を除く): 27996832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7823, 15646, 31292, 39115, 62584, 78230, 125168, 156460, 250336, 312920, 500672, 625840, 1001344, 1251680, 2002688, 2503360, 4005376, 5006720, 10013440, 20026880]

約数ペア:

[(1, 20026880), (2, 10013440), (4, 5006720), (5, 4005376), (8, 2503360), (10, 2002688), (16, 1251680), (20, 1001344), (32, 625840), (40, 500672), (64, 312920), (80, 250336), (128, 156460), (160, 125168), (256, 78230), (320, 62584), (512, 39115), (640, 31292), (1280, 15646), (2560, 7823)]