20569552

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{953}}^1$

素因数の和:1051

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 22017008

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 284, 304, 568, 953, 1136, 1349, 1906, 2698, 3812, 5396, 7624, 10792, 15248, 18107, 21584, 36214, 67663, 72428, 135326, 144856, 270652, 289712, 541304, 1082608, 1285597, 2571194, 5142388, 10284776, 20569552]

約数ペア:

[(1, 20569552), (2, 10284776), (4, 5142388), (8, 2571194), (16, 1285597), (19, 1082608), (38, 541304), (71, 289712), (76, 270652), (142, 144856), (152, 135326), (284, 72428), (304, 67663), (568, 36214), (953, 21584), (1136, 18107), (1349, 15248), (1906, 10792), (2698, 7624), (3812, 5396)]