28544620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1087}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 65253888

約数和(自身を除く): 36709268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1087, 1313, 2020, 2174, 2626, 4348, 5252, 5435, 6565, 10870, 13130, 14131, 21740, 26260, 28262, 56524, 70655, 109787, 141310, 219574, 282620, 439148, 548935, 1097870, 1427231, 2195740, 2854462, 5708924, 7136155, 14272310, 28544620]

約数ペア:

[(1, 28544620), (2, 14272310), (4, 7136155), (5, 5708924), (10, 2854462), (13, 2195740), (20, 1427231), (26, 1097870), (52, 548935), (65, 439148), (101, 282620), (130, 219574), (202, 141310), (260, 109787), (404, 70655), (505, 56524), (1010, 28262), (1087, 26260), (1313, 21740), (2020, 14131), (2174, 13130), (2626, 10870), (4348, 6565), (5252, 5435)]