81681152

素因数分解:

$2^8\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2399}}^1$

素因数の和:2441

約数の個数: 72

約数和(自身を含む): 196224000

約数和(自身を除く): 114542848

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 256, 266, 304, 448, 532, 608, 896, 1064, 1216, 1792, 2128, 2399, 2432, 4256, 4798, 4864, 8512, 9596, 16793, 17024, 19192, 33586, 34048, 38384, 45581, 67172, 76768, 91162, 134344, 153536, 182324, 268688, 307072, 319067, 364648, 537376, 614144, 638134, 729296, 1074752, 1276268, 1458592, 2149504, 2552536, 2917184, 4299008, 5105072, 5834368, 10210144, 11668736, 20420288, 40840576, 81681152]

約数ペア:

[(1, 81681152), (2, 40840576), (4, 20420288), (7, 11668736), (8, 10210144), (14, 5834368), (16, 5105072), (19, 4299008), (28, 2917184), (32, 2552536), (38, 2149504), (56, 1458592), (64, 1276268), (76, 1074752), (112, 729296), (128, 638134), (133, 614144), (152, 537376), (224, 364648), (256, 319067), (266, 307072), (304, 268688), (448, 182324), (532, 153536), (608, 134344), (896, 91162), (1064, 76768), (1216, 67172), (1792, 45581), (2128, 38384), (2399, 34048), (2432, 33586), (4256, 19192), (4798, 17024), (4864, 16793), (8512, 9596)]