28648720

素因数分解:

$2^4\times 5^1\times {\mathrm{358109}}^1$

素因数の和:358122

約数の個数: 20

約数和(自身を含む): 66608460

約数和(自身を除く): 37959740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358109, 716218, 1432436, 1790545, 2864872, 3581090, 5729744, 7162180, 14324360, 28648720]

約数ペア:

[(1, 28648720), (2, 14324360), (4, 7162180), (5, 5729744), (8, 3581090), (10, 2864872), (16, 1790545), (20, 1432436), (40, 716218), (80, 358109)]