20128150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:589

約数の個数: 48

約数和(自身を含む): 43211520

約数和(自身を除く): 23083370

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 131, 175, 262, 350, 439, 655, 878, 917, 1310, 1834, 2195, 3073, 3275, 4390, 4585, 6146, 6550, 9170, 10975, 15365, 21950, 22925, 30730, 45850, 57509, 76825, 115018, 153650, 287545, 402563, 575090, 805126, 1437725, 2012815, 2875450, 4025630, 10064075, 20128150]

約数ペア:

[(1, 20128150), (2, 10064075), (5, 4025630), (7, 2875450), (10, 2012815), (14, 1437725), (25, 805126), (35, 575090), (50, 402563), (70, 287545), (131, 153650), (175, 115018), (262, 76825), (350, 57509), (439, 45850), (655, 30730), (878, 22925), (917, 21950), (1310, 15365), (1834, 10975), (2195, 9170), (3073, 6550), (3275, 6146), (4390, 4585)]