1291689728

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16763}}^1$

素因数の和:16829

約数の個数: 72

約数和(自身を含む): 3015374208

約数和(自身を除く): 1723684480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 448, 602, 688, 896, 1204, 1376, 1792, 2408, 2752, 4816, 5504, 9632, 11008, 16763, 19264, 33526, 38528, 67052, 77056, 117341, 134104, 234682, 268208, 469364, 536416, 720809, 938728, 1072832, 1441618, 1877456, 2145664, 2883236, 3754912, 4291328, 5045663, 5766472, 7509824, 10091326, 11532944, 15019648, 20182652, 23065888, 30039296, 40365304, 46131776, 80730608, 92263552, 161461216, 184527104, 322922432, 645844864, 1291689728]

約数ペア:

[(1, 1291689728), (2, 645844864), (4, 322922432), (7, 184527104), (8, 161461216), (14, 92263552), (16, 80730608), (28, 46131776), (32, 40365304), (43, 30039296), (56, 23065888), (64, 20182652), (86, 15019648), (112, 11532944), (128, 10091326), (172, 7509824), (224, 5766472), (256, 5045663), (301, 4291328), (344, 3754912), (448, 2883236), (602, 2145664), (688, 1877456), (896, 1441618), (1204, 1072832), (1376, 938728), (1792, 720809), (2408, 536416), (2752, 469364), (4816, 268208), (5504, 234682), (9632, 134104), (11008, 117341), (16763, 77056), (19264, 67052), (33526, 38528)]