638564768

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{863}}^1\times {\mathrm{1217}}^1$

素因数の和:2109

約数の個数: 48

約数和(自身を含む): 1325963520

約数和(自身を除く): 687398752

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 863, 1217, 1726, 2434, 3452, 4868, 6904, 9736, 13808, 16397, 19472, 23123, 27616, 32794, 38944, 46246, 65588, 92492, 131176, 184984, 262352, 369968, 524704, 739936, 1050271, 2100542, 4201084, 8402168, 16804336, 19955149, 33608672, 39910298, 79820596, 159641192, 319282384, 638564768]

約数ペア:

[(1, 638564768), (2, 319282384), (4, 159641192), (8, 79820596), (16, 39910298), (19, 33608672), (32, 19955149), (38, 16804336), (76, 8402168), (152, 4201084), (304, 2100542), (608, 1050271), (863, 739936), (1217, 524704), (1726, 369968), (2434, 262352), (3452, 184984), (4868, 131176), (6904, 92492), (9736, 65588), (13808, 46246), (16397, 38944), (19472, 32794), (23123, 27616)]