80940656

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:849

約数の個数: 40

約数和(自身を含む): 160894464

約数和(自身を除く): 79953808

約数列:

[1, 2, 4, 8, 16, 61, 122, 127, 244, 254, 488, 508, 653, 976, 1016, 1306, 2032, 2612, 5224, 7747, 10448, 15494, 30988, 39833, 61976, 79666, 82931, 123952, 159332, 165862, 318664, 331724, 637328, 663448, 1326896, 5058791, 10117582, 20235164, 40470328, 80940656]

約数ペア:

[(1, 80940656), (2, 40470328), (4, 20235164), (8, 10117582), (16, 5058791), (61, 1326896), (122, 663448), (127, 637328), (244, 331724), (254, 318664), (488, 165862), (508, 159332), (653, 123952), (976, 82931), (1016, 79666), (1306, 61976), (2032, 39833), (2612, 30988), (5224, 15494), (7747, 10448)]