28040810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{787}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 57870720

約数和(自身を除く): 29829910

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 509, 787, 1018, 1574, 2545, 3563, 3935, 5090, 5509, 7126, 7870, 11018, 17815, 27545, 35630, 55090, 400583, 801166, 2002915, 2804081, 4005830, 5608162, 14020405, 28040810]

約数ペア:

[(1, 28040810), (2, 14020405), (5, 5608162), (7, 4005830), (10, 2804081), (14, 2002915), (35, 801166), (70, 400583), (509, 55090), (787, 35630), (1018, 27545), (1574, 17815), (2545, 11018), (3563, 7870), (3935, 7126), (5090, 5509)]