1288796620

素因数分解:

$2^2\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{49531}}^1$

素因数の和:50841

約数の個数: 24

約数和(自身を含む): 2708607888

約数和(自身を除く): 1419811268

約数列:

[1, 2, 4, 5, 10, 20, 1301, 2602, 5204, 6505, 13010, 26020, 49531, 99062, 198124, 247655, 495310, 990620, 64439831, 128879662, 257759324, 322199155, 644398310, 1288796620]

約数ペア:

[(1, 1288796620), (2, 644398310), (4, 322199155), (5, 257759324), (10, 128879662), (20, 64439831), (1301, 990620), (2602, 495310), (5204, 247655), (6505, 198124), (13010, 99062), (26020, 49531)]