20005760

素因数分解:

$2^7\times 5^1\times {\mathrm{31259}}^1$

素因数の和:31278

約数の個数: 32

約数和(自身を含む): 47827800

約数和(自身を除く): 27822040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31259, 62518, 125036, 156295, 250072, 312590, 500144, 625180, 1000288, 1250360, 2000576, 2500720, 4001152, 5001440, 10002880, 20005760]

約数ペア:

[(1, 20005760), (2, 10002880), (4, 5001440), (5, 4001152), (8, 2500720), (10, 2000576), (16, 1250360), (20, 1000288), (32, 625180), (40, 500144), (64, 312590), (80, 250072), (128, 156295), (160, 125036), (320, 62518), (640, 31259)]